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Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk Facebook Instagram

OE Match

OE Match
About OE Match

OE Match for Porsche

OE Match is a brand that provides a wide range of Porsche components, from gaskets to suspension hardware, engine parts, and interior trim. Over 6,700 individual part numbers, and over 11,800 OE cross-references catalogued, and are constantly developing new lines.OE Match has over 100 new products currently in the engineering phase, which will be quality-controlled and added to their catalog. The mission is to keep all Porsche vehicles on the road by offering a vast selection of parts that can address various problems across different Porsche generations

A Quick Look at OE Match

OE Match information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where OE Match is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

  • Often chosen when owners want OE-equivalent quality with sensible running costs, especially for routine service and wear items.
  • Typical reasons to replace include restoring reliability, addressing age-related wear, or refreshing multiple components during larger repair work.
  • Common defects from incorrect application include noise, premature wear, leaks, or fitment quirks if the wrong variant is selected or fitted with old seals/hardware.
  • Watch for symptoms such as unusual noises, early wear, or repeat failures after recent work, which can indicate mismatched parts or supporting items left worn.
  • Always cross-check OEM part numbers, read model-year notes, and verify compatibility before ordering.
  • For safety-critical components, confirm specification and fitment carefully and have installation checked by a competent technician.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Brakes — Brake components are renewed to restore stopping performance, address wear or upgrade a Porsche for fast road or track use. Common symptoms include vibration under braking, longer stopping distances, squealing, pulling to one side, warning lights and visible wear to discs and pads.

Brake Pad Wear Sensors — Brake pad wear sensors are replaced when pads are renewed or when warning lights indicate a broken or worn sensor. Symptoms include brake wear warnings even with new pads, damaged sensor cables, or broken clips around the caliper area.

Engine Electrical — Engine electrical parts are changed when there are starting, charging, ignition, or sensor-related faults that affect drivability and reliability, such as intermittent no-start, misfires, rough idle, poor charging, warning lights or heat-soak failures.

Service Parts — Service parts are replaced as routine maintenance to keep the engine and systems reliable, efficient, and protected, often resolving hard starting, rough idle, poor fuel economy and warning lights caused by clogged filters or worn ignition components.

Service Kits — Service kits bundle key service components to simplify maintenance and set the car back to a known baseline, especially useful when catching up on overdue servicing or dealing with general sluggish running, inconsistent idle and reduced performance.

  • For brake parts, confirm whether items are OE-equivalent replacements or performance upgrades and check if new fitting kits and sensors are required.
  • On service items and kits, match the kit to your exact Porsche model, engine and year, and review what is included so you can add any extra “while you are there” parts.

Explore OE Match at Design911

View the current OE Match range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 49 to 64 (of 8493 products)
<< 3 4 5 6 >>
823947105B/1
Product Information
Product Information
Interior Light.
Maintain reliable cabin illumination with this OE Match Interior Light, manufactured as a direct replacement. Produced to OE-style specifications, this interior light is designed to provide dependable lighting for the passenger compartment, improving visibility when entering or exiting the vehicle and assisting occupants in locating controls and personal belongings in low-light conditions. It also restores the original appearance of the vehicle's interior with the correct fit and finish.

Fits:
  • Porsche 924 2.0L 1976-79
  • Porsche 924 2.0L 1980-85
  • Porsche 924S 2.5L 1986-87
  • Porsche 924S 2.5L 1988
  • Porsche 944 2.5L 8V 1982-87
  • Porsche 944 2.7L 8V 1988-89
  • Porsche 944S 2.5L 16V 1987-88
  • Porsche 944S2 3.0L 16V 1989-91
  • Porsche 968 3.0L 1992-94
  • Porsche 968 Sport 3.0L 1994-95
  • Porsche 968 CS 3.0L 1993-95
  • Porsche 968 Turbo S 3.0L 1993-94
  • Porsche 928 4.5L 1978-82
  • Porsche 928S 4.7L 1981-83
  • Porsche 928S2 4.7L 1984-86
  • Porsche 928S4 5.0L 1987-92
  • Porsche 928GT 5.0L 1989-91
  • Porsche 928GTS 5.4L 1992-95
  
Diagram Ref No 1

Over time, the original interior light can become damaged due to age, heat, UV exposure, or accidental impact. Cracked lenses, worn housings, corroded electrical contacts, or moisture ingress can reduce light output or cause complete failure. Replacing a damaged or faulty interior light restores reliable cabin illumination while maintaining the factory appearance of the interior. This OE Match interior light is ideal for routine maintenance, interior repairs, and Porsche restoration projects.

What This Product Does:
  • Illuminates the passenger compartment.
  • Improves visibility when entering or exiting the vehicle.
  • Assists occupants in locating controls and personal belongings.
  • Provides reliable cabin lighting in low-light conditions.
  • Replaces damaged or faulty original interior light units.
  • Restores the factory appearance of the interior.
  • Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:
  • Interior light failing to illuminate.
  • Flickering or intermittent lighting.
  • Cracked or damaged light lens.
  • Discoloured or heat-damaged housing.
  • Loose or damaged mounting points.
  • Corroded electrical contacts.
  • Damage identified during interior refurbishment or restoration.

Why Replacement Matters:

  • The interior light is an important convenience and safety feature, providing illumination inside the cabin whenever the doors are opened or when additional lighting is required. A damaged or faulty light unit can reduce interior visibility, making it more difficult to access controls or locate items while also detracting from the vehicle's overall presentation.
  • Replacing a worn or damaged interior light restores dependable cabin illumination, improves the appearance of the interior, and helps maintain the original functionality of the lighting system. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Interior Light provides the correct fit, reliable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

823947105B
823947105B
92863210901

The product you are viewing cross references to these numbers
92342459100/1
Product Information
Product Information
Handbrake Boot Sleeve.
Restore the appearance of your Porsche interior with this OE Match Handbrake Boot Sleeve, manufactured as a direct replacement. Produced to OE-style specifications, this handbrake boot sleeve is designed to fit neatly around the base of the handbrake lever, concealing the mechanism beneath while providing a clean, factory-correct finish to the centre console.

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974 2.7L

Diagram Ref No 43

Over time, the original handbrake boot can become cracked, split, faded, or worn through regular use, exposure to sunlight, and age. A damaged boot not only detracts from the appearance of the interior but can also allow dirt and debris to accumulate around the handbrake mechanism. Replacing a worn or damaged handbrake boot sleeve restores the original interior presentation while helping to keep the mechanism protected. This OE Match handbrake boot sleeve is ideal for routine interior maintenance, refurbishment, and Porsche restoration projects.  

What This Product Does:
  • Covers the base of the handbrake lever.
  • Conceals the handbrake mechanism for a factory-style appearance.
  • Helps protect the mechanism from dirt and debris.
  • Restores the original finish of the centre console.
  • Replaces cracked, split, or worn original handbrake boots.
  • Enhances the overall appearance of the vehicle interior.
  • Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:
  • Cracked or split handbrake boot.
  • Faded or worn material.
  • Loose or poorly fitting boot sleeve.
  • Torn stitching or damaged trim.
  • Dirt collecting around the handbrake mechanism.
  • Cosmetic deterioration of the centre console.
  • Interior restoration requiring replacement trim components.

Why Replacement Matters:

  • The handbrake boot sleeve is an important interior trim component that helps protect the handbrake mechanism while maintaining the clean, finished appearance of the Porsche centre console. A worn or damaged boot can detract from the quality of the interior and allow dust and debris to enter the mechanism, potentially increasing wear over time.
  • Replacing a deteriorated handbrake boot sleeve restores the original factory appearance, improves the presentation of the interior, and helps protect the handbrake assembly from contamination. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Handbrake Boot Sleeve provides the correct fit, high-quality finish, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

92342459100
92342459100

The product you are viewing cross references to these numbers
CHIPEU993DB9598
Product Information
Product Information

Performance Upgrade Chip – Varioram with Standard Flywheel and Clutch for Euro Version (55-Pin DME)

Unlock the full performance potential of your 1995-1998 Porsche 993 Varioram (European specification) with the OE Match Performance Upgrade Chip. Developed exclusively for Euro Varioram models (excluding US specification vehicles) fitted with the 55-pin Bosch Motronic DME 0.261.203.679, this advanced calibration transforms the performance and drivability of Porsche's final air-cooled flat-six.

Fits:

  • Porsche 993 (911) C2 1995-97
  • Porsche 993 (911) C4 1995-97
  • Porsche 993 (911) C2S 1995-97
  • Porsche 993 (911) C4S 1995-97

Suitable for manual and Tiptronic transmissions, the OE Match Performance Chip delivers stronger low and mid-range torque, sharper throttle response and smoother power delivery while maintaining factory reliability.

Unlock the Hidden Performance of the Varioram Engine

The Varioram induction system provides excellent flexibility, but the factory Bosch Motronic calibration leaves significant performance untapped. OE Match software has been extensively developed to remove the familiar hesitation below 4,000 rpm, allowing the 3.6-litre engine to produce stronger pulling power from low RPM while delivering noticeably improved throttle response.

Benefits include:

  • Increased low and mid-range torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm flat spot
  • Improved acceleration throughout the rev range
  • Dyno-proven horsepower gains
  • Smoother, more responsive power delivery

The result is a 993 that feels more eager, more flexible and considerably more enjoyable to drive on both road and track.

Includes the Latest Lightweight Flywheel (LWF) Software

If your vehicle has been fitted with an RS lightweight flywheel and clutch, the latest OE Match software incorporates the advanced Lightweight Flywheel Fix.

This programming:

  • Eliminates lightweight flywheel stalling
  • Prevents RPM dipping below idle during deceleration and gear changes
  • Improves clutch engagement
  • Reduces unnecessary clutch slip and wear
  • Further enhances throttle response

The software is fully compatible with both standard and lightweight flywheel vehicles, and existing OE Match customers can update earlier chips to the latest LWF coding.

Optional Immobiliser / Driveblock Delete

This calibration can also be supplied with the Immobiliser / Driveblock function disabled for vehicles equipped with Porsche's factory Driveblock system.

Removing the Driveblock function eliminates the need to deactivate the immobiliser with the key fob before every journey, restoring the operation of the vehicle to that of a factory non-Driveblock model.

To complete the conversion, install jumper relay 96461018400 into relay position R61, exactly as Porsche specified for non-Driveblock vehicles.

Ordering Information

This calibration is suitable for:

  • 1995-1998 Porsche 993 Varioram (European specification only)
  • Bosch Motronic DME 0.261.203.679
  • 55-pin DME connector
  • Manual transmission or Tiptronic transmission

Before ordering, confirm the Bosch DME number printed on the Motronic label located on the DME beneath the left-hand front seat to ensure compatibility.

Why Choose OE Match?

Unlike generic replacement chips, every OE Match calibration has been extensively refined through dyno development and real-world road testing to deliver maximum performance while maintaining factory reliability.

The software is designed for 95 RON premium fuel as standard, with an optional 98 RON performance calibration available for owners regularly using higher-octane fuel. Every chip is engineered not to trigger the Check Engine Light and is backed by a 100% satisfaction guarantee.

Benefits

Increased horsepower and torque Sharper throttle response Eliminates the factory sub-4,000 rpm hesitation Improved low and mid-range acceleration Supports lightweight flywheel conversions Optional Driveblock removal Improved everyday drivability 100% satisfaction guarantee

Porsche 993 Varioram Performance Chips & Bosch Motronic ECU Upgrades

OE Match Performance Chips are specifically developed for 1995-1998 European Porsche 993 Varioram models equipped with the 55-pin Bosch Motronic DME 0.261.203.678. By optimising ignition timing, fuel delivery and throttle response, these calibrations unlock the full performance potential of the Varioram induction system while maintaining factory refinement and reliability.


CHIPEU993DBL9598
Product Information
Product Information

Performance Upgrade Chip – Varioram Euro with Lightweight Flywheel & Clutch for Euro Version (55-Pin DME)

Unleash the full performance potential of your 1995-1998 Porsche 993 Varioram (European specification) with the OE Match Performance Upgrade Chip, developed specifically for Driveblock-equipped vehicles fitted with an RS lightweight flywheel and clutch assembly. Designed exclusively for Euro-specification Varioram models (excluding US vehicles) using the 55-pin Bosch Motronic DME 0.261.203.679, this advanced calibration transforms the performance, drivability and responsiveness of Porsche's legendary air-cooled 3.6-litre flat-six.

Fits:

  • Porsche 993 (911) C2 1995-97
  • Porsche 993 (911) C4 1995-97
  • Porsche 993 (911) C2S 1995-97
  • Porsche 993 (911) C4S 1995-97

Suitable for both manual and Tiptronic transmissions, the OE Match Performance Chip delivers stronger low and mid-range torque, sharper throttle response and significantly improved acceleration while incorporating the latest Lightweight Flywheel (LWF) software.

Specifically Engineered for Lightweight Flywheel Conversions

A lightweight flywheel allows the engine to rev faster and respond more eagerly, but many conversions suffer from unstable idle, RPM dip and stalling during deceleration or when pulling away.

OE Match has developed one of the most advanced Lightweight Flywheel software solutions available to eliminate these common drivability issues while enhancing the benefits of the lighter rotating assembly.

The latest LWF calibration:

  • Eliminates lightweight flywheel stalling
  • Prevents RPM dropping below idle during deceleration and gear changes
  • Improves clutch engagement from standstill
  • Reduces unnecessary clutch slip, helping minimise clutch wear
  • Maximises the sharper throttle response and faster engine acceleration provided by the lightweight flywheel

Former OE Match customers are welcome to have their chips updated free of charge to the latest Lightweight Flywheel coding.

Unlock the Hidden Performance of the Varioram Engine

The Porsche Varioram induction system already provides exceptional flexibility, but the factory Bosch Motronic calibration leaves noticeable performance untapped.

OE Match software removes the familiar hesitation below 4,000 rpm, allowing the engine to produce substantially stronger low and mid-range torque while delivering immediate throttle response throughout the rev range.

Performance benefits include:

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm flat spot
  • Improved acceleration throughout the rev range
  • Faster engine response
  • Smoother and more progressive power delivery

The result is a 993 that feels significantly more responsive and rewarding to drive in every situation.

Optional Immobiliser / Driveblock Delete

This chip can also be supplied with the Immobiliser / Driveblock function disabled for vehicles originally equipped with Porsche's factory Driveblock system.

Removing the Driveblock function eliminates the need to deactivate the immobiliser using the key fob before every journey, returning the vehicle to the operation of a factory non-Driveblock model.

To complete the conversion, install jumper relay 964.610.184.00 into relay position R61, exactly as Porsche specified.

Premium Fuel Calibration

Every OE Match Performance Chip is calibrated for 91 AKI (95 RON) premium unleaded fuel as standard.

For owners regularly using 93 AKI (98 RON) premium fuel, an alternative 98 RON calibration can be supplied. Simply select your preferred fuel grade when placing your order.

Unlike many generic performance chips, OE Match software is carefully developed to deliver enhanced performance without triggering the Check Engine Light.

Ordering Information

This calibration is compatible with:

  • Porsche 993 Varioram (1995-1998 European specification)
  • Bosch Motronic DME 0.261.203.679
  • 55-pin DME connector Manual transmission
  • Tiptronic transmission RS lightweight flywheel and clutch conversions

Before ordering, verify the Bosch DME number printed on the Motronic label located on the DME beneath the left-hand front seat.

Why Choose OE Match?

Every OE Match Performance Chip is developed through extensive dyno testing and real-world road evaluation to deliver maximum performance while maintaining factory reliability.

Each calibration is tailored to the exact vehicle specification, optimised for lightweight flywheel conversions and engineered for premium fuel

Benefits

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm lag
  • Eliminates lightweight flywheel stalling
  • Improved clutch engagement and drivability
  • Faster engine response
  • Reduced clutch wear
  • Optional Driveblock removal
  • Factory-quality reliability

Porsche 993 Varioram Performance Chips for Lightweight Flywheel Conversions

OE Match Performance Chips are engineered specifically for 1995-1998 Porsche 993 Varioram Euro models fitted with an RS lightweight flywheel and clutch assembly. By recalibrating the Bosch Motronic ECU and incorporating the latest Lightweight Flywheel software, these calibrations eliminate the common drivability issues associated with lightweight flywheel conversions while delivering stronger torque, faster throttle response and increased horsepower.

Design911 supplies vehicle-specific OE Match Performance Chips for manual and Tiptronic transmissions, with support for optional Driveblock removal, premium fuel calibrations and Bosch DME-specific programming. Every chip is carefully matched to the correct ECU to ensure maximum compatibility, reliability and performance

CHIPEU993L9598
Product Information
Product Information

Performance Upgrade Chip – Varioram Euro with Lightweight Flywheel & Clutch for Euro Version (55-Pin DME)

Unleash the full performance potential of your 1995-1998 Porsche 993 Varioram (European specification) with the OE Match Performance Upgrade Chip, engineered specifically for cars fitted with an RS lightweight flywheel and clutch assembly. Designed exclusively for Euro-specification Varioram models (excluding US vehicles) using the 55-pin Bosch Motronic DME 0.261.203.678, this advanced calibration transforms the performance, drivability and responsiveness of Porsche's legendary 3.6-litre air-cooled flat-six.

Fits:

  • Porsche 993 (911) C2 1995-97
  • Porsche 993 (911) C4 1995-97
  • Porsche 993 (911) C2S 1995-97
  • Porsche 993 (911) C4S 1995-97

Suitable for both manual and Tiptronic transmissions, the OE Match Performance Chip delivers stronger low and mid-range torque, sharper throttle response and significantly improved acceleration while incorporating the latest Lightweight Flywheel (LWF) software.

Specifically Engineered for Lightweight Flywheel Conversions

An RS lightweight flywheel allows the engine to rev faster and respond more eagerly, but many conversions suffer from unstable idle, RPM dip and stalling during deceleration or when pulling away.

OE Match has developed one of the most advanced Lightweight Flywheel software solutions available to eliminate these common drivability issues while enhancing the benefits of the lighter rotating assembly.

The latest LWF calibration:

  • Eliminates lightweight flywheel stalling
  • Prevents RPM dropping below idle during deceleration and gear changes
  • Improves clutch engagement from standstill
  • Reduces unnecessary clutch slip, helping minimise clutch wear
  • Maximises the sharper throttle response and faster engine acceleration provided by the lightweight flywheel

Former OE Match customers are welcome to have their chips updated free of charge to the latest Lightweight Flywheel coding.

Unlock the Hidden Performance of the Varioram Engine

The Porsche Varioram induction system already provides exceptional flexibility, but the factory Bosch Motronic calibration leaves noticeable performance untapped.

OE Match software removes the familiar hesitation below 4,000 rpm, allowing the engine to produce substantially stronger low and mid-range torque while delivering immediate throttle response throughout the rev range.

Performance benefits include:

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm flat spot
  • Improved acceleration throughout the rev range
  • Faster engine response
  • Smoother and more progressive power delivery

The result is a 993 that feels significantly more responsive and rewarding to drive in every situation.

Optional Immobiliser / Driveblock Delete

This chip can also be supplied with the Immobiliser / Driveblock function disabled for vehicles originally equipped with Porsche's factory Driveblock system.

Removing the Driveblock function eliminates the need to deactivate the immobiliser using the key fob before every journey, returning the vehicle to the operation of a factory non-Driveblock model.

To complete the conversion, install jumper relay 964.610.184.00 into relay position R61, exactly as Porsche specified.

Premium Fuel Calibration

Every OE Match Performance Chip is calibrated for 91 AKI (95 RON) premium unleaded fuel as standard.

For owners regularly using 93 AKI (98 RON) premium fuel, an alternative 98 RON calibration can be supplied. Simply select your preferred fuel grade when placing your order.

Unlike many generic performance chips, OE Match software is carefully developed to deliver enhanced performance without triggering the Check Engine Light.

Ordering Information

This calibration is compatible with:

  • Porsche 993 Varioram (1995-1998 European specification)
  • Bosch Motronic DME 0.261.203.678
  • 55-pin DME connector Manual transmission
  • Tiptronic transmission RS lightweight flywheel and clutch conversions

Before ordering, verify the Bosch DME number printed on the Motronic label located on the DME beneath the left-hand front seat.

Why Choose OE Match?

Every OE Match Performance Chip is developed through extensive dyno testing and real-world road evaluation to deliver maximum performance while maintaining factory reliability.

Each calibration is tailored to the exact vehicle specification, optimised for lightweight flywheel conversions and engineered for premium fuel

Benefits

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm lag
  • Eliminates lightweight flywheel stalling
  • Improved clutch engagement and drivability
  • Faster engine response
  • Reduced clutch wear
  • Optional Driveblock removal
  • Factory-quality reliability

Porsche 993 Varioram Performance Chips for Lightweight Flywheel Conversions

OE Match Performance Chips are engineered specifically for 1995-1998 Porsche 993 Varioram Euro models fitted with an RS lightweight flywheel and clutch assembly. By recalibrating the Bosch Motronic ECU and incorporating the latest Lightweight Flywheel software, these calibrations eliminate the common drivability issues associated with lightweight flywheel conversions while delivering stronger torque, faster throttle response and increased horsepower.

Design911 supplies vehicle-specific OE Match Performance Chips for manual and Tiptronic transmissions, with support for optional Driveblock removal, premium fuel calibrations and Bosch DME-specific programming. Every chip is carefully matched to the correct ECU to ensure maximum compatibility, reliability and performance

91162816700/1
Product Information
Product Information
Water Tank Reservoir Lid.
Maintain the integrity of your Porsche's windscreen washer system with this OE Match Water Tank Reservoir Lid, manufactured as a direct replacement. Produced to OE-style specifications, this reservoir lid is designed to securely seal the windscreen washer fluid tank, preventing contamination, minimising fluid loss, and ensuring the washer system remains ready for use in all driving conditions.

Fits:
  • Porsche 911 1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 356B 1959-63
  • Porsche 356C 1963-65  

Diagram Ref No 3

Over time, the original reservoir lid can become brittle, cracked, warped, or lost through age and repeated removal during routine servicing. A damaged or missing lid can allow dirt, moisture, and debris to enter the washer reservoir, leading to contamination of the washer fluid and reduced system reliability. Replacing a worn or missing lid restores a secure seal and helps maintain the efficient operation of the washer system. This OE Match water tank reservoir lid is ideal for routine maintenance, washer system repairs, and Porsche restoration projects.  

What This Product Does:
  • Seals the windscreen washer fluid reservoir.
  • Helps prevent contamination of the washer fluid.
  • Reduces the risk of fluid spillage and evaporation.
  • Maintains the cleanliness of the washer system.
  • Replaces cracked, damaged, or missing original reservoir lids.
  • Supports reliable operation of the windscreen washer system.
  • Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:
  • Missing washer reservoir lid.
  • Cracked or broken reservoir cap.
  • Loose or poorly fitting lid.
  • Dirt or debris entering the washer reservoir.
  • Washer fluid contamination.
  • Signs of fluid spillage around the filler neck.
  • Damage identified during routine servicing or restoration.

Why Replacement Matters:

  • The water tank reservoir lid is a simple but essential component of the Porsche windscreen washer system, helping to keep the washer fluid clean while preventing unnecessary fluid loss and protecting the reservoir from contamination. A damaged or missing lid can allow debris to enter the system, potentially blocking washer jets or affecting pump performance.
  • Replacing a worn or missing reservoir lid restores a secure seal, protects the washer system from contamination, and helps ensure reliable windscreen cleaning in all weather conditions. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Water Tank Reservoir Lid provides the correct fit, dependable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91162816700
90162872026

The product you are viewing cross references to these numbers
91161363301/1
Product Information
Product Information
Door Mirror Adjustment Switch Cap.
Restore the original appearance and functionality of your Porsche interior with this OE Match Door Mirror Adjustment Switch Cap, manufactured as a direct replacement. Produced to OE-style specifications, this switch cap fits the door mirror adjustment switch, providing the correct interface for adjusting the exterior mirrors while maintaining the factory appearance of the dashboard or door trim.

Fits:
  • Porsche 911 1976-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1976-1977 3.0L Turbo (930)  

Diagram Ref No 22

Over time, the original switch cap can become worn, cracked, faded, or loose due to frequent use, UV exposure, and age. A damaged or missing switch cap can make mirror adjustment difficult while detracting from the appearance of the interior. Replacing the worn cap restores both ease of operation and the original factory finish. This OE Match door mirror adjustment switch cap is ideal for routine interior maintenance, switch repairs, and Porsche restoration projects.  

What This Product Does:
  • Fits the exterior mirror adjustment switch.
  • Provides a comfortable and secure operating surface.
  • Restores the original appearance of the switch assembly.
  • Allows smooth adjustment of the door mirrors.
  • Replaces worn, cracked, or missing original switch caps.
  • Enhances the appearance of the interior controls.
  • Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:
  • Cracked or broken switch cap.
  • Worn or faded surface finish.
  • Loose-fitting switch cap.
  • Missing switch cap.
  • Difficulty operating the mirror adjustment switch.
  • Cosmetic damage affecting the dashboard or door trim.
  • Interior refurbishment requiring replacement switch trim.

Why Replacement Matters:

  • The door mirror adjustment switch cap is a small but frequently used interior component that allows accurate operation of the exterior mirror adjustment switch while contributing to the original appearance of the Porsche interior. A worn or damaged switch cap can reduce operating comfort, make mirror adjustment more difficult, and detract from the overall presentation of the cabin.
  • Replacing a damaged switch cap restores smooth operation, improves the appearance of the interior controls, and helps maintain the authentic factory finish. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Door Mirror Adjustment Switch Cap provides the correct fit, reliable operation, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91161363301
91161363301

The product you are viewing cross references to these numbers
CHIPEU9939598
Product Information
Product Information

Performance Upgrade Chip – Varioram with Standard Flywheel and Clutch for Euro Version (55-Pin DME)

Unlock the full performance potential of your 1995-1998 Porsche 993 Varioram (European specification) with the OE Match Performance Upgrade Chip. Developed exclusively for Euro Varioram models (excluding US specification vehicles) fitted with the 55-pin Bosch Motronic DME 0.261.203.678, this advanced calibration transforms the performance and drivability of Porsche's final air-cooled flat-six.

Fits:

  • Porsche 993 (911) C2 1995-97
  • Porsche 993 (911) C4 1995-97
  • Porsche 993 (911) C2S 1995-97
  • Porsche 993 (911) C4S 1995-97

Suitable for manual and Tiptronic transmissions, the OE Match Performance Chip delivers stronger low and mid-range torque, sharper throttle response and smoother power delivery while maintaining factory reliability.

Unlock the Hidden Performance of the Varioram Engine

The Varioram induction system provides excellent flexibility, but the factory Bosch Motronic calibration leaves significant performance untapped. OE Match software has been extensively developed to remove the familiar hesitation below 4,000 rpm, allowing the 3.6-litre engine to produce stronger pulling power from low RPM while delivering noticeably improved throttle response.

Benefits include:

  • Increased low and mid-range torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm flat spot
  • Improved acceleration throughout the rev range
  • Dyno-proven horsepower gains
  • Smoother, more responsive power delivery

The result is a 993 that feels more eager, more flexible and considerably more enjoyable to drive on both road and track.

Includes the Latest Lightweight Flywheel (LWF) Software

If your vehicle has been fitted with an RS lightweight flywheel and clutch, the latest OE Match software incorporates the advanced Lightweight Flywheel Fix.

This programming:

  • Eliminates lightweight flywheel stalling
  • Prevents RPM dipping below idle during deceleration and gear changes
  • Improves clutch engagement
  • Reduces unnecessary clutch slip and wear
  • Further enhances throttle response

The software is fully compatible with both standard and lightweight flywheel vehicles, and existing OE Match customers can update earlier chips to the latest LWF coding.

Optional Immobiliser / Driveblock Delete

This calibration can also be supplied with the Immobiliser / Driveblock function disabled for vehicles equipped with Porsche's factory Driveblock system.

Removing the Driveblock function eliminates the need to deactivate the immobiliser with the key fob before every journey, restoring the operation of the vehicle to that of a factory non-Driveblock model.

To complete the conversion, install jumper relay 96461018400 into relay position R61, exactly as Porsche specified for non-Driveblock vehicles.

Ordering Information

This calibration is suitable for:

  • 1995-1998 Porsche 993 Varioram (European specification only)
  • Bosch Motronic DME 0.261.203.678
  • 55-pin DME connector
  • Manual transmission or Tiptronic transmission

Before ordering, confirm the Bosch DME number printed on the Motronic label located on the DME beneath the left-hand front seat to ensure compatibility.

Why Choose OE Match?

Unlike generic replacement chips, every OE Match calibration has been extensively refined through dyno development and real-world road testing to deliver maximum performance while maintaining factory reliability.

The software is designed for 95 RON premium fuel as standard, with an optional 98 RON performance calibration available for owners regularly using higher-octane fuel. Every chip is engineered not to trigger the Check Engine Light and is backed by a 100% satisfaction guarantee.

Benefits

Increased horsepower and torque Sharper throttle response Eliminates the factory sub-4,000 rpm hesitation Improved low and mid-range acceleration Supports lightweight flywheel conversions Optional Driveblock removal Improved everyday drivability 100% satisfaction guarantee

Porsche 993 Varioram Performance Chips & Bosch Motronic ECU Upgrades

OE Match Performance Chips are specifically developed for 1995-1998 European Porsche 993 Varioram models equipped with the 55-pin Bosch Motronic DME 0.261.203.678. By optimising ignition timing, fuel delivery and throttle response, these calibrations unlock the full performance potential of the Varioram induction system while maintaining factory refinement and reliability.


98733202463/1
Product Information
Product Information
Replacement driveshaft, for Tiptronic cars
This OE Match driveshaft is a replacement rear axle shaft assembly for Porsche 987.1 Boxster and 987.1 Cayman 2.7L models fitted with Tiptronic transmission. It is designed to match the original-style fitment and function, making it suitable for drivetrain repair, CV joint service, or axle replacement.
Sold individually, 2 required per vehicle. 

Fits:
Cars with Tiptronic transmission (option code: 249)
Porsche 987.1 Boxster 2.7L 2005 - 2008
Porsche 987C.1 Cayman 2.7L 2006 - 2008

Diagram ref no 1

The driveshaft transfers rotational power from the transmission / differential output to the rear wheel hub. It works with the CV joints to allow suspension movement while maintaining smooth and consistent drive to the road wheels.

Functions
•  Replaces the rear driveshaft / axle shaft
•  Suitable for Porsche 987.1 Boxster and Cayman 2.7L Tiptronic cars
•  Transfers drive from the transmission to the wheel hub
•  Supports smooth power delivery under acceleration
•  Allows suspension movement through the CV joint assembly
•  Helps reduce vibration, knocking, or drivetrain play caused by worn axle components
•  OE Match replacement for Porsche 987.1 drivetrain repair.

Why Replace This Part?
Driveshafts and CV joints are exposed to torque load, road dirt, suspension movement, heat, vibration, and mileage. Over time, joints can wear, boots can split, grease can escape, and shaft components can develop play or imbalance. A worn or damaged driveshaft may cause clicking, knocking, vibration, grease leakage, poor power delivery, or drivetrain noise. Replacing the driveshaft helps restore smooth and reliable rear axle operation.

When to Replace This Part
•   Clicking or knocking is present under acceleration or cornering
•   Vibration is felt through the drivetrain
•   CV boots are split, leaking, or damaged
•   Grease is visible around the driveshaft or wheel hub area
•   Excessive play is found in the CV joints or shaft
•   Rear axle or transmission service is being carried out
•   The vehicle is undergoing Porsche 987.1 drivetrain repair or restoration

Where it fits on the car
This driveshaft fits within the rear axle drivetrain assembly on Porsche 987.1 Boxster and 987.1 Cayman 2.7L Tiptronic models. Exact side and position should be checked against the vehicle diagram before ordering.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98733202463
98733202463
98733202406
98733202407

The product you are viewing cross references to these numbers
99633202422/1
Product Information
Product Information
Driveshaft, for Tiptronic cars
This OE Match driveshaft is a replacement axle shaft assembly for Porsche 996 models fitted with Tiptronic transmission. It is designed to match the original-style fitment and function, making it suitable for drivetrain repair, CV joint service, or axle replacement

Fits:
Porsche 996 C2 3.6L 2002 >>
Porsche 996 C4 3.6L 2002 >>
 * Up to VIN
99-2S603 555
99-2S642 147
99-2S630 713
99-2S603 622
99-2S642 181
99-2S630 736

The driveshaft transfers rotational power from the gearbox / differential output to the rear wheel hub. It works with the CV joints to allow suspension movement while maintaining smooth drive to the road wheels.

Functions
•  Replaces the rear driveshaft / axle shaft
•  Suitable for Porsche 996 Tiptronic cars from 2002 onwards
•  Transfers drive from the transmission to the wheel hub
•  Supports smooth power delivery under acceleration
•  Allows suspension movement through the CV joint assembly
•  Helps reduce vibration, knocking, or drivetrain play caused by worn driveshaft components
•  OE Match replacement for Porsche 996 drivetrain repair.

Why Replace This Part?
Driveshafts and CV joints are exposed to torque load, road dirt, suspension movement, heat, vibration, and mileage. Over time, joints can wear, boots can split, grease can escape, and shaft components can develop play or vibration. A worn or damaged driveshaft may cause clicking, knocking, vibration, grease leakage, poor power delivery, or drivetrain noise. Replacing the driveshaft helps restore smooth and reliable rear axle operation.

When to Replace This Part
•   Clicking or knocking is present under acceleration or cornering
•   Vibration is felt through the drivetrain
•   CV boots are split, leaking, or damaged
•   Grease is visible around the driveshaft or wheel hub area
•   Excessive play is found in the CV joints or shaft
•   Rear axle or transmission service is being carried out
•   The vehicle is undergoing Porsche 996 drivetrain repair or restoration.

Where it fits on the car
This driveshaft fits within the rear axle drivetrain assembly on Porsche 996 Tiptronic models from 2002 onwards. Exact side and position should be checked against the vehicle diagram before ordering.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99633202422
99633202405
99633202415
99633202422

The product you are viewing cross references to these numbers
98633202458/1
Product Information
Product Information
Replacement Driveshaft, for Tiptronic cars
Maintain smooth and dependable drivetrain performance with this OE Match Rear Driveshaft for Tiptronic Models, manufactured as a direct replacement. Produced to OE-style specifications, this rear driveshaft is specifically designed for Porsche models equipped with the Tiptronic automatic transmission, transferring engine torque from the transmission and differential to the driven rear wheel while accommodating normal suspension movement.

Fits:
Cars with Tiptronic transmission (option code: 249)
Porsche 986 Boxster 2.5L 1997 - 1999
Porsche 986 Boxster 2.7L 1999 - 2002

Diagram ref no 1

Over time, the original driveshaft can develop worn constant velocity (CV) joints, split protective boots, corrosion, or excessive wear from continual drivetrain loads and high mileage. These issues can cause vibration, knocking noises, grease leakage, and inconsistent power delivery. Replacing a worn or damaged driveshaft restores smooth drivetrain operation, improves driving refinement, and helps prevent unnecessary wear to surrounding drivetrain components. This OE Match rear driveshaft is ideal for routine maintenance, drivetrain repairs, and Porsche restoration projects.  

What This Product Does:
•  Transfers engine torque from the drivetrain to the rear wheel
•  Is designed specifically for Porsche Tiptronic transmission models
•  Accommodates suspension movement while maintaining smooth power delivery
•  Supports efficient and reliable drivetrain operation
•  Replaces worn, damaged, or noisy original driveshafts
•  Restores smooth acceleration and driving refinement
•  Provides an OE-style fit and dependable quality

Symptoms Of Wear Or Failure:
•  Clicking or knocking noises during acceleration or turning
•  Vibration under acceleration or at road speed
•  Split or leaking CV joint boots
•  Grease leakage around the CV joints
•  Excessive play within the driveshaft assembly
•  Reduced drivetrain smoothness
•  Wear or damage identified during drivetrain servicing or restoration

Why Replacement Matters:
The rear driveshaft is an essential component of the Porsche drivetrain, transmitting engine power efficiently to the driven wheels while allowing the suspension to move through its full range of travel. On Tiptronic-equipped vehicles, maintaining smooth and reliable power transfer is particularly important for drivetrain refinement and driving comfort. A worn or damaged driveshaft can cause vibration, noise, reduced efficiency, and additional stress on CV joints, wheel bearings, and differential components.

Replacing a faulty rear driveshaft restores smooth power transmission, improves vehicle refinement, and helps maintain the reliability and performance expected from your Porsche. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Rear Driveshaft for Tiptronic Models provides the correct fit, dependable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98633202458
98633202405
98633202408
98633202414
98633202458

The product you are viewing cross references to these numbers
CHIP99304L9596
Product Information
Product Information

Performance Upgrade Chip – Non-Varioram with Lightweight Flywheel & Clutch

Unlock the full potential of your 1994-1995 Porsche 993 Non-Varioram with the OE Match Performance Upgrade Chip, developed specifically for cars fitted with an RS lightweight flywheel and clutch. Designed for manual and Tiptronic (non-Driveblock) models, this advanced Bosch Motronic calibration delivers stronger low and mid-range torque, sharper throttle response and improved drivability while incorporating the latest Lightweight Flywheel (LWF) software solution.

Fits:

  • Porsche 993 (911) C2 1994-95
  • Porsche 993 (911) C4 1994-95

Compatible with Bosch Motronic DME 0.261.203.675 and the following Porsche DME part numbers:

  • 99361812403
  • 99361812404
  • 99361812405
  • 99361812406

Designed for Lightweight Flywheel Conversions

Fitting an RS lightweight flywheel allows the engine to rev more freely and respond faster, but many conversions suffer from unstable idle, RPM dip and stalling during deceleration or when pulling away.

OE Match has developed one of the most advanced software solutions available to eliminate these issues while enhancing the performance benefits of the lightweight flywheel.

The latest calibration:

  • Eliminates lightweight flywheel stalling
  • Prevents RPM dropping below idle during deceleration and gear changes
  • Improves clutch engagement from standstill
  • Reduces unnecessary clutch slip and wear
  • Maximises the faster throttle response of the lightweight flywheel

Former OE Match customers can also have earlier chips updated to the latest LWF coding.

Unlock the Hidden Performance of the 3.6-Litre Flat-Six

The factory Bosch Motronic calibration leaves considerable performance untapped. OE Match software has been extensively developed to remove the familiar flat spot below 4,000 rpm, giving the engine stronger pulling power from low RPM and significantly improving throttle response.

Benefits include:

  • Increased low and mid-range torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm hesitation
  • Improved acceleration throughout the rev range
  • Dyno-proven horsepower gains
  • Smoother, more responsive power delivery

The result is a 993 that feels noticeably more eager, making full use of the lightweight flywheel's quicker engine response.

Premium Fuel Calibration

Every OE Match chip is calibrated for 91 AKI (95 RON) premium unleaded fuel as standard. If you regularly use 93 AKI (98 RON) fuel, a dedicated 98 RON calibration can be supplied. Simply select your preferred fuel grade when ordering.

Optional Immobiliser / Driveblock Delete

For vehicles originally equipped with Porsche's Driveblock immobiliser, this chip can also be supplied with the immobiliser function disabled.

This removes the need to deactivate the immobiliser with the key fob before every journey, returning the vehicle to the operation of a factory non-Driveblock model.

To complete the conversion, install jumper relay 96461018400 into relay position R61, exactly as Porsche specified on non-Driveblock vehicles.

Ordering Information

Porsche fitted six different Bosch Motronic DMEs to 1994-1995 Non-Varioram models.

Before ordering, remove the DME unit from beneath the left-hand front seat and verify the Bosch or Porsche part number shown on the Motronic label to ensure the correct chip is supplied.

Why Choose OE Match?

Unlike generic replacement chips, every OE Match calibration is developed through extensive dyno testing and real-world road evaluation to suit the exact vehicle specification.

The software is engineered specifically for lightweight flywheel conversions, will not trigger the Check Engine Light

Benefits

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm lag
  • Eliminates lightweight flywheel stalling
  • Improved clutch engagement
  • Faster engine response Optional
  • Driveblock removal
  • Improved everyday drivability
  • Premium fuel calibration (95 RON standard / 98 RON optional)
  • Will not trigger the Check Engine Light       

CHIP993049596
Product Information
Product Information

Performance Upgrade Chip – Non-Varioram Cars

Unlock the true performance of your 1994-1995 Porsche 993 Non-Varioram with the OE Match Performance Upgrade Chip. Developed specifically for manual and Tiptronic (non-Driveblock) models, this precision calibration transforms the drivability of the legendary 3.6-litre flat-six, delivering stronger low and mid-range torque, sharper throttle response and improved acceleration throughout the rev range.

Fits:

  • Porsche 993 (911) C2 1994-95
  • Porsche 993 (911) C4 1994-95

Compatible with Bosch Motronic DME 0.261.203.675 and the following Porsche DME part numbers:

  • 99361812403
  • 99361812404
  • 99361812405
  • 99361812406       

Transform the Way Your 993 Drives

The factory Bosch Motronic calibration leaves noticeable performance untapped. OE Match software has been extensively developed to eliminate the familiar flat spot below 4,000 rpm, allowing the engine to pull harder from low RPM while significantly improving throttle response and everyday drivability.

Benefits include:

  • Stronger low and mid-range torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm hesitation
  • Improved acceleration throughout the rev range
  • Dyno-proven horsepower gains
  • Smoother, more responsive driving experience

Every calibration is designed for 91 AKI (95 RON) premium fuel as standard. If you regularly use 93 AKI (98 RON) fuel, an optimised 98 RON calibration can be supplied—simply select your preferred fuel grade when ordering.

Includes the Latest Lightweight Flywheel (LWF) Fix

If your 993 has been fitted with an RS lightweight flywheel, this software includes the latest LWF Fix to eliminate the stalling and RPM dip often associated with lightweight flywheel conversions.

The updated programming:

Eliminates stalling during deceleration and gear changes Prevents RPM dropping below idle Improves clutch engagement Reduces unnecessary clutch slip Enhances throttle response

The software is equally suitable for vehicles retaining the factory flywheel, and existing customers can update older OE Match chips to the latest LWF coding.

Optional Immobiliser / Driveblock Delete

This chip can also be supplied with the Immobiliser / Driveblock function disabled for vehicles originally equipped with the Porsche Driveblock system.

Disabling the Driveblock removes the need to deactivate the immobiliser with the key fob every time the vehicle is started, returning the car to the operating style of factory non-Driveblock models.

To complete the conversion, jumper relay 964.610.184.00 must be installed in relay position R61, exactly as fitted by Porsche on non-Driveblock vehicles.

Ordering Information

Porsche fitted six different Bosch Motronic DMEs to 1994-1995 Non-Varioram 993 models.

Before ordering, remove the DME unit from beneath the left-hand front seat and confirm the Bosch or Porsche part number printed on the Motronic label to ensure the correct chip is supplied.

Why Choose OE Match?

Unlike generic replacement chips, every OE Match calibration has been extensively refined through dyno development and real-world testing to provide maximum performance while maintaining factory reliability.

The software is engineered not to trigger the Check Engine Light

Benefits

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm lag
  • Improved low and mid-range acceleration
  • Eliminates lightweight flywheel stalling
  • Optional Driveblock removal Improved everyday drivability 

Porsche 993 Non-Varioram Performance Chips & Bosch Motronic ECU Upgrades

OE Match Performance Chips are specifically developed for 1994-1995 Porsche 993 Non-Varioram models, optimising the Bosch Motronic ECU to deliver stronger torque, improved throttle response and increased horsepower while maintaining factory reliability.

Design911 supplies model-specific calibrations for manual and Tiptronic cars, with support for lightweight flywheel conversions, premium fuel calibrations and optional Driveblock removal. Every chip is matched to the correct Bosch DME to ensure perfect compatibility and maximum performance.

CHIP99303L9596
Product Information
Product Information

Performance Upgrade Chip – Non-Varioram with Lightweight Flywheel & Clutch

Unlock the full potential of your 1994-1995 Porsche 993 Non-Varioram with the OE Match Performance Upgrade Chip, developed specifically for cars fitted with an RS lightweight flywheel and clutch. Designed for manual and Tiptronic (non-Driveblock) models, this advanced Bosch Motronic calibration delivers stronger low and mid-range torque, sharper throttle response and improved drivability while incorporating the latest Lightweight Flywheel (LWF) software solution.

Fits:

  • Porsche 993 (911) C2 1994-95
  • Porsche 993 (911) C4 1994-95

Compatible with Bosch Motronic DME 0.261.203.674 and the following Porsche DME part numbers:

  • 99361812301
  • 99361812302
  • 99361812303
  • 99361812304
  • 99361812305
  • 99361812306


Designed for Lightweight Flywheel Conversions

Fitting an RS lightweight flywheel allows the engine to rev more freely and respond faster, but many conversions suffer from unstable idle, RPM dip and stalling during deceleration or when pulling away.

OE Match has developed one of the most advanced software solutions available to eliminate these issues while enhancing the performance benefits of the lightweight flywheel.

The latest calibration:

  • Eliminates lightweight flywheel stalling
  • Prevents RPM dropping below idle during deceleration and gear changes
  • Improves clutch engagement from standstill
  • Reduces unnecessary clutch slip and wear
  • Maximises the faster throttle response of the lightweight flywheel

Former OE Match customers can also have earlier chips updated to the latest LWF coding.

Unlock the Hidden Performance of the 3.6-Litre Flat-Six

The factory Bosch Motronic calibration leaves considerable performance untapped. OE Match software has been extensively developed to remove the familiar flat spot below 4,000 rpm, giving the engine stronger pulling power from low RPM and significantly improving throttle response.

Benefits include:

  • Increased low and mid-range torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm hesitation
  • Improved acceleration throughout the rev range
  • Dyno-proven horsepower gains
  • Smoother, more responsive power delivery

The result is a 993 that feels noticeably more eager, making full use of the lightweight flywheel's quicker engine response.

Premium Fuel Calibration

Every OE Match chip is calibrated for 91 AKI (95 RON) premium unleaded fuel as standard. If you regularly use 93 AKI (98 RON) fuel, a dedicated 98 RON calibration can be supplied. Simply select your preferred fuel grade when ordering.

Optional Immobiliser / Driveblock Delete

For vehicles originally equipped with Porsche's Driveblock immobiliser, this chip can also be supplied with the immobiliser function disabled.

This removes the need to deactivate the immobiliser with the key fob before every journey, returning the vehicle to the operation of a factory non-Driveblock model.

To complete the conversion, install jumper relay 96461018400 into relay position R61, exactly as Porsche specified on non-Driveblock vehicles.

Ordering Information

Porsche fitted six different Bosch Motronic DMEs to 1994-1995 Non-Varioram models.

Before ordering, remove the DME unit from beneath the left-hand front seat and verify the Bosch or Porsche part number shown on the Motronic label to ensure the correct chip is supplied.

Why Choose OE Match?

Unlike generic replacement chips, every OE Match calibration is developed through extensive dyno testing and real-world road evaluation to suit the exact vehicle specification.

The software is engineered specifically for lightweight flywheel conversions, will not trigger the Check Engine Light

Benefits

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm lag
  • Eliminates lightweight flywheel stalling
  • Improved clutch engagement
  • Faster engine response Optional
  • Driveblock removal
  • Improved everyday drivability
  • Premium fuel calibration (95 RON standard / 98 RON optional)
  • Will not trigger the Check Engine Light       

CHIP993039596
Product Information
Product Information

Performance Upgrade Chip – Non-Varioram Cars

Unlock the true performance of your 1994-1995 Porsche 993 Non-Varioram with the OE Match Performance Upgrade Chip. Developed specifically for manual and Tiptronic (non-Driveblock) models, this precision calibration transforms the drivability of the legendary 3.6-litre flat-six, delivering stronger low and mid-range torque, sharper throttle response and improved acceleration throughout the rev range.

Fits:

  • Porsche 993 (911) C2 1994-95
  • Porsche 993 (911) C4 1994-95

Compatible with Bosch Motronic DME 0.261.203.674 and the following Porsche DME part numbers:

  • 99361812301
  • 99361812302
  • 99361812303
  • 99361812304
  • 99361812305
  • 99361812306

Transform the Way Your 993 Drives

The factory Bosch Motronic calibration leaves noticeable performance untapped. OE Match software has been extensively developed to eliminate the familiar flat spot below 4,000 rpm, allowing the engine to pull harder from low RPM while significantly improving throttle response and everyday drivability.

Benefits include:

  • Stronger low and mid-range torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm hesitation
  • Improved acceleration throughout the rev range
  • Dyno-proven horsepower gains
  • Smoother, more responsive driving experience

Every calibration is designed for 91 AKI (95 RON) premium fuel as standard. If you regularly use 93 AKI (98 RON) fuel, an optimised 98 RON calibration can be supplied—simply select your preferred fuel grade when ordering.

Includes the Latest Lightweight Flywheel (LWF) Fix

If your 993 has been fitted with an RS lightweight flywheel, this software includes the latest LWF Fix to eliminate the stalling and RPM dip often associated with lightweight flywheel conversions.

The updated programming:

Eliminates stalling during deceleration and gear changes Prevents RPM dropping below idle Improves clutch engagement Reduces unnecessary clutch slip Enhances throttle response

The software is equally suitable for vehicles retaining the factory flywheel, and existing customers can update older OE Match chips to the latest LWF coding.

Optional Immobiliser / Driveblock Delete

This chip can also be supplied with the Immobiliser / Driveblock function disabled for vehicles originally equipped with the Porsche Driveblock system.

Disabling the Driveblock removes the need to deactivate the immobiliser with the key fob every time the vehicle is started, returning the car to the operating style of factory non-Driveblock models.

To complete the conversion, jumper relay 964.610.184.00 must be installed in relay position R61, exactly as fitted by Porsche on non-Driveblock vehicles.

Ordering Information

Porsche fitted six different Bosch Motronic DMEs to 1994-1995 Non-Varioram 993 models.

Before ordering, remove the DME unit from beneath the left-hand front seat and confirm the Bosch or Porsche part number printed on the Motronic label to ensure the correct chip is supplied.

Why Choose OE Match?

Unlike generic replacement chips, every OE Match calibration has been extensively refined through dyno development and real-world testing to provide maximum performance while maintaining factory reliability.

The software is engineered not to trigger the Check Engine Light

Benefits

  • Increased horsepower and torque
  • Sharper throttle response
  • Eliminates the factory sub-4,000 rpm lag
  • Improved low and mid-range acceleration
  • Eliminates lightweight flywheel stalling
  • Optional Driveblock removal Improved everyday drivability 

Porsche 993 Non-Varioram Performance Chips & Bosch Motronic ECU Upgrades

OE Match Performance Chips are specifically developed for 1994-1995 Porsche 993 Non-Varioram models, optimising the Bosch Motronic ECU to deliver stronger torque, improved throttle response and increased horsepower while maintaining factory reliability.

Design911 supplies model-specific calibrations for manual and Tiptronic cars, with support for lightweight flywheel conversions, premium fuel calibrations and optional Driveblock removal. Every chip is matched to the correct Bosch DME to ensure perfect compatibility and maximum performance.

91161302904/1
Product Information
Product Information
Headlamp Switch.
Restore dependable lighting control with this OE Match Headlamp Switch, manufactured as a direct replacement. Produced to OE-style specifications, this headlamp switch is designed to operate the vehicle's exterior lighting system, allowing the driver to control the side lights, headlamps, and associated lighting functions with smooth, reliable operation.
 
Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 911 1978-1989 3.3L Turbo (930)  


Diagram Ref No 1

Over time, the original switch can suffer from worn internal contacts, heat damage, corrosion, or mechanical wear caused by frequent use and age. These faults can lead to intermittent lighting operation, flickering headlamps, or complete switch failure, compromising visibility and vehicle safety. Replacing a worn or faulty headlamp switch restores dependable lighting control and ensures the electrical system functions as intended. This OE Match headlamp switch is ideal for routine maintenance, electrical repairs, and Porsche restoration projects.  

What This Product Does:

  • Controls the operation of the vehicle's exterior lighting.
  • Activates the side lights and headlamps.
  • Provides reliable switching of the lighting circuits.
  • Helps ensure safe vehicle operation in low-light conditions.
  • Replaces worn, damaged, or faulty original switches.
  • Restores smooth and dependable lighting control.
  • Provides an OE-style fit and dependable quality.

Symptoms Of Wear Or Failure:
  • Headlamps failing to switch on or off correctly.
  • Intermittent lighting operation.
  • Flickering headlights or side lights.
  • Loose or inconsistent switch operation.
  • Excessive heat around the switch.
  • Burnt or worn electrical contacts.
  • Electrical faults identified during lighting system servicing or restoration.

Why Replacement Matters:
  • The headlamp switch is a vital component of the Porsche electrical system, providing safe and reliable control of the vehicle's exterior lighting. A worn or faulty switch can result in unreliable headlamp operation, intermittent electrical faults, and reduced visibility, affecting both safety and driving confidence.
  • Replacing a damaged headlamp switch restores consistent lighting control, improves electrical reliability, and helps ensure the lighting system performs as Porsche intended. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Headlamp Switch provides the correct fit, dependable performance, and long-lasting durability, making it an excellent choice for Porsche maintenance, repairs, and restoration projects.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91161302904
91161302903
90161321200
91161302900
91161302901
91161302902
91161302904

The product you are viewing cross references to these numbers
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