Air Induction Kits

Intake system for individual throttle bodies glass reinforced thermoplastic. 



Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Silverlake Projects presents a complete intake system for air-cooled Porsche 964/993 engines equipped with ITBs (Individual Throttle Bodies), designed for maximum performance and efficiency.

The intake system includes:

• 2 x GT3-style intake manifolds in glass-reinforced thermoplastic
• Glass-reinforced thermoplastic intake T-tube for air filter connection
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with vacuum actuator
• 6 x high-temperature silicone couplers for manifold-to-runner connections
• 4 x high-temperature silicone couplers for manifold-to-T/resonance flap connections
• TMAP sensor for accurate manifold pressure readings
• All mounting fasteners in lightweight titanium alloy
• Vacuum reservoir for optimal pressure management

Weighing just 4.5 kg (9.9 lbs), this system is significantly lighter than the stock 964 intake, which weighs 11.5 kg (25.3 lbs).

Why choose our system?

• 50% lighter than stock: A combination of carbon fiber, thermoplastics, and titanium results in a remarkably light system.
• Fuel rail precision mounting: Direct mounting to the runner ensures perfect injector press fit.
• Superior heat insulation: CNC-machined PTFE inserts between the cylinder head and runner offer exceptional heat protection, especially in idle or street driving conditions.
• Perfect sealing: Custom nitrile O-rings between the runner and cylinder head, as well as the intake T and throttle body, guarantee a secure, leak-free fit.
• Premium silicone sleeves: Silverlake’s precision-molded OEM+ silicone sleeves provide superior temperature resistance and ensure a flawless fit with all components, delivering better airflow and an unmatched look.
• Titanium fasteners: Tin-coated titanium alloy hardware not only reduces weight but also enhances the system’s aesthetic appeal.

This intake system is built for those seeking the ultimate performance, weight savings, and durability for their Porsche 964/993 engine.

K&N High Performance replacement air filter.



This Product Fits:
Porsche 911 (930) Turbo 3.0L 1975-77
Porsche 911 (930) Turbo 3.2L 1977-90
Porsche 965 Turbo 3.3L 1990-93
Porsche 965 Turbo 3.6L 1993


K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower.

Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty.

K&N drop-in replacement filters are designed to install easily into your factory air box.

Works with Original Equipment Manufacturer Vehicle Electronics.

Environmentally Friendly, K&N Reusable Air Filters

Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!

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

33-2530

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K&N High Performance replacement air filter.



This Product Fits:
Porsche 964 3.6L C2 / C4 / RS 1988-94 (Excl. Turbo)


K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower.

Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty.

K&N drop-in replacement filters are designed to install easily into your factory air box.

Works with Original Equipment Manufacturer Vehicle Electronics.

Environmentally Friendly, K&N Reusable Air Filters

Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!

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

33-2077

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MAF Sensor Conversion Kit 

Modernise the intake air measurement system of your Porsche with the Rennline MAF Sensor Conversion Kit.

Designed to replace the original Bosch Motronic Air Flow Meter (AFM), this conversion removes the restrictive mechanical flap-style airflow meter and replaces it with a modern hot-film Mass Air Flow (MAF) sensor.

Fits:

• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• 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 944 Turbo 2.5L 8V 1985-88
• Porsche 944 Turbo 2.5L 8V 1989-91
• Porsche 944 Turbo S 2.5L 8V 1988

With no moving airflow door restricting the intake, the engine can breathe more freely while the ECU receives accurate electronic airflow information throughout the operating range. The result is sharper throttle response, stronger usable power and torque, more efficient engine operation and an approximate 2.5kg weight saving.

Why Replace the Original Bosch AFM?

The original Bosch Motronic system uses a spring-loaded flap connected to a potentiometer to measure incoming air.

Although effective technology for its time, the mechanical flap creates a physical restriction within the intake. At low RPM and partial throttle, when the flap is only slightly open, this restriction can dull throttle response and make the engine feel less responsive.

At wide-open throttle, the limitations of the original AFM also mean the engine management relies on a richer, conservative operating strategy to help protect against knock.

Modern Hot-Film MAF Technology

The Rennline conversion replaces the mechanical AFM with a modern hot-film Mass Air Flow sensor.

Rather than using a moving flap, the MAF measures incoming air electronically. Removing the mechanical restriction allows air to pass more freely through the intake while providing the ECU with accurate airflow data throughout the RPM range.

The system also incorporates full altitude correction, compensating for changes in air density at different elevations.

Key Benefits

• Replaces the original Bosch Motronic AFM
• Modern hot-film MAF technology
• Eliminates the restrictive mechanical airflow flap
• Sharper low-RPM and partial-throttle response
• Stronger usable power and torque
• Accurate airflow measurement throughout the RPM range
• Cleaner and more efficient engine operation
• Full altitude correction for air-density compensation
• Approximately 2.5kg weight saving
• Plug-and-play installation
• No chip tuning required
• No calibration required

Improved Throttle Response

Removing the spring-loaded AFM door eliminates a physical obstruction from the intake system.

This is particularly beneficial at low engine speeds and partial throttle, helping the engine respond more immediately to accelerator input and providing a more engaging driving experience.

Plug-and-Play Installation

Unlike some MAF conversions that require replacement ECU chips, custom mapping or additional modifications, the Rennline x Storch VE system has been developed as a genuine plug-and-play conversion.

No calibration or chip tuning is required, allowing the original airflow measurement system to be modernised without extensive changes to the Bosch Motronic engine management system.

Porsche AFM Upgrade

Original Bosch AFMs are now decades old, and wear to their mechanical components and potentiometer can eventually contribute to inconsistent airflow readings and poor engine operation.

Rather than simply replacing an ageing AFM with another mechanical unit, this conversion introduces modern electronic airflow measurement while reducing intake restriction.

It is an ideal solution for owners searching for a Porsche 944 AFM replacement, Porsche 924S airflow meter upgrade or plug-and-play MAF conversion.

Important California Sales Restriction
This product cannot be sold or shipped to California.

Related reference numbers
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PLJ04

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Rennline RS Carbon Fiber heater duct.

Fits:
Porsche 964 / 993 1989 - 1998 EXCEPT 95's*.
993's require the 964 fan shroud part # 964.106.403.02 .
Many people are using these on 95's but fitment at the base is poor, and we do not recommend installation on this model year.

Rennline’s blower motor bypass pipe is a carbon fiber replica of the factory installed unit found on the lightweight 3.6 RS race cars. This pipe allows you to save 9 pounds from the removal of the factory blower motor assembly, but still have a functioning heater system in your car. Manufactured from ultra strong, lightweight carbon fiber and comes equipped with the aluminium fitting for the distributor breather tube.

Note: Pictures may not show actual product.

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M09NOPLATE

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Rennline RSR/Cup Heater Fan Delete Kit.

Fits:
Porsche 964/993 1989-95 Non VarioCam Cars
*** Will not work on Turbo cars.

Removing the blower motor assembly from your 1989-98 964/993 is a very standard modification for cars that want to loose a few pounds. This modification reduces your cars weight by about 10 pounds and really cleans up the engine bay. This kit is an exact replica as used by Porsche Motorsports for the factory lightweight 964 CUP and 964 RSR race cars. Manufactured from aluminum and is available in Red and Black Powder coat or clear anodized. Comes with all the stainless steel hardware required for a 20 minute installation.

Note: Pictures may not show actual product.

This is only the replacement filter for the induction kit.

Replacement filter for GruppeM RAM AIR SYSTEMS epitomize the GruppeM philosophy of attention to detail. By replacing the factory air handling systems, increased airflow streams into the combustion chamber.

On the GruppeM intake for the Porsche 964 3.6L 1989-94 , the factory ductwork is replaced with heat-shielding carbon fiber with enhanced inlets to capture the maximum amount of air. Lower intake air temperatures carry higher concentrations of oxygen, allowing for more energetic explosions and producing more horsepower and torque. Of course, reliability is never sacrificed -- high-efficiency, high-flow K&N air filter materials prevent contaminants from interfering with proper engine function.

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GMR-3301

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Silicone coupler sleeve set for GT3 intake manifold plenum to throttle body. 
Sold as a set of 4

Fits:
Porsche 964 - 1989 to 1994 (with GT3 inlet upgrade)
Porsche 993 - 1994 to 1998 (with GT3 inlet upgrade)
Porsche 996 - 1997 to 2005 (with GT3 inlet upgrade)

The original rubber couplers for Porsche 996 and 997 GT3 models have become increasingly costly and hard to source, and many enthusiasts opt to avoid them for high-performance applications like hot rods or track cars due to their limited heat resistance.

Our precision-molded OEM+ silicone sleeves are the perfect direct replacement, offering double the temperature resistance of the original rubber couplers along with an enhanced appearance. These high-quality sleeves are essential for replacing worn-out rubber parts and are ideal for air-cooled hot rods undergoing a modern DBW (Drive-By-Wire) conversion using a GT3 intake plenum.

This set includes four silicone sleeves 

Replaces Porsche part number 99611068552 and 99611068650

Diagram ref no 9 and 11

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99611068650

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Silicone sleeve set for GT3 intake manifold. Porsche 964 / 993 / 996
Sold as a set of 6

Fits:
Porsche 964 - 1989 to 1994 (with GT3 inlet upgrade)
Porsche 993 - 1994 to 1998 (with GT3 inlet upgrade)
Porsche 996 - 1997 to 2005 (with GT3 inlet upgrade)

The original rubber couplers for Porsche 996 and 997 GT3 models have become increasingly costly and hard to source, and many enthusiasts opt to avoid them for high-performance applications like hot rods or track cars due to their limited heat resistance.

Our precision-molded OEM+ silicone sleeves are the perfect direct replacement, offering double the temperature resistance of the original rubber couplers along with an enhanced appearance. These high-quality sleeves are essential for replacing worn-out rubber parts and are ideal for air-cooled hot rods undergoing a modern DBW (Drive-By-Wire) conversion using a GT3 intake plenum.

This set includes six (6) silicone sleeves 

Replaces Porsche part numbers 99611068792 and 99611068790

Related reference numbers
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99611068792

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