Electronic Fuel Injection Throttle Kits

This Adapt Motorsport drive-by-wire kit equips a classic Porsche 911 Carrera 3.2 intake manifold with a Bosch 74mm electronic throttle body. It replaces the standard 63mm mechanical arrangement and is supplied with a choice of small or large K&N air filter.

Fits

• 911 1974–1977 2.7L / 1976–77 3.0 Carrera
• 911 1978–1983 3.0L / SC
• 911 1984–1986 3.2L
• 911 1987–1989 3.2L G50
  
  

Installation requires a Carrera 3.2 intake manifold together with compatible electronic throttle control and engine management. Check fitment for your specific vehicle, model year, engine and conversion specification before ordering.

What This Product Does

The kit converts the Carrera 3.2 intake manifold from a mechanically operated throttle body to electronic drive-by-wire control. Its larger throttle diameter supports increased airflow, while a suitable ECU can manage throttle sensitivity, idle control and other electronic throttle functions.

Functions

• Provides electronic control of the engine throttle.
• Increases throttle-body diameter from 63mm to 74mm.
• Allows ECU-based throttle sensitivity calibration.
• Supports electronic idle control without separate bypass hoses or an idle-air valve.
• Removes the original throttle linkage, bellcrank and associated bushes.
• Provides vacuum connections for a fuel-pressure regulator and compatible accessories.

Technical Details

• Bosch 74mm electronic throttle body.
• Tapered adapter plate matched to the original Carrera 3.2 manifold port.
• O-ring sealing on both sides of the adapter plate.
• Precision-machined, bead-blasted and clear-anodised air-filter adapter.
• Includes fasteners, electrical connector kit, vacuum fittings, vacuum hose and filter-adapter hardware.
• Supplied with either a small or large K&N air filter; Adapt Motorsport recommends the small filter for street engines below 3.6 litres.

Why Replacement Matters

This conversion removes mechanical linkage drag and simplifies the intake installation while enabling programmable throttle behaviour through a compatible ECU. Depending on the selected engine-management system and calibration, electronic throttle control may also support functions such as torque management, traction control and cruise control.

Installation Notes

The throttle body must be installed and calibrated by an experienced person. Appropriate ECU safety strategies must be configured, and the conversion will require a compatible electronic accelerator pedal and engine-management system. Additional intake pipework may be fabricated if the air filter is to be positioned away from the throttle body.

Kit Contents

• Bosch 74mm throttle body.
• Tapered adapter plate with O-rings and vacuum fittings.
• Air-filter adapter with O-ring and fasteners.
• Small or large K&N air filter, according to the selected kit.
• Electrical connector kit, vacuum hose and installation fasteners.

Rennen Camshaft Position Sensor for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen Camshaft Position Sensor (CMP Sensor) is a critical engine management component designed specifically for use with Rennen by JSR Individual Barrel Throttle Body (ITB) upgrades. Working alongside the Crankshaft Position Sensor, the camshaft sensor provides the ECU with precise information regarding camshaft position and engine cycle synchronisation, allowing modern engine management systems to control fuel injection and ignition timing with maximum accuracy.

Fits:

• 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

When upgrading a Porsche engine to Rennen by JSR Barrel ITBs and standalone engine management, accurate engine position data becomes essential. While the crankshaft sensor identifies engine speed and crank position, the camshaft position sensor tells the ECU exactly which cylinder is on its firing cycle. This information allows advanced ECU strategies such as sequential fuel injection and cylinder-specific ignition mapping.

For high-performance road, track and motorsport Porsche engines, the camshaft position sensor is a key component in unlocking the full potential of an Individual Throttle Body conversion.

What Does a Camshaft Position Sensor Do?

The camshaft position sensor continuously monitors the position of the camshaft and transmits this information to the ECU.

The ECU uses this data to determine:

• Cylinder identification
• Camshaft position
• Engine cycle synchronisation
• Sequential fuel injection timing
• Ignition event timing
• Engine start-up strategy
• Advanced engine management functions

A properly functioning camshaft sensor helps provide:

• Accurate fuel delivery
• Improved ignition control
• Faster engine starting
• Enhanced throttle response
• Stable idle quality
• Improved drivability
• Greater tuning precision

The sensor enables the ECU to know exactly where the engine is within its operating cycle.

Why Is a Camshaft Position Sensor Essential for ITB Conversions?

Rennen by JSR Barrel Throttle Body systems are designed to maximise engine performance and responsiveness. To fully exploit these benefits, modern programmable engine management systems require highly accurate engine position information.

The camshaft position sensor allows:

• Sequential fuel injection operation
• Cylinder-specific ignition timing
• Improved cold-start performance
• Enhanced fuel economy
• Smoother idle characteristics
• More precise tuning control
• Improved emissions control where applicable

Without a camshaft position sensor, many ECUs are forced to operate in less sophisticated batch-fire fuel injection modes, reducing the overall refinement and efficiency of the engine.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies are engineered to deliver exceptional airflow and a truly engaging driving experience.

Benefits include:

• Instant throttle response
• Increased airflow capacity
• Improved engine breathing
• Enhanced power and torque potential
• Motorsport-inspired induction sound
• Greater tuning flexibility
• Improved driver engagement
• Stunning engine bay appearance

When combined with accurate crankshaft and camshaft position monitoring, the system delivers professional-level engine management performance.

Why Choose the Rennen Camshaft Position Sensor?

Developed specifically for Rennen by JSR ITB applications, this sensor provides the accuracy and reliability required for advanced ECU calibration.

Benefits include:

• Accurate camshaft position measurement
• Supports sequential fuel injection
• Enables advanced ECU functionality
• Improves engine synchronisation
• Enhances drivability
• Supports high-performance tuning
• Suitable for road and motorsport applications
• Reliable long-term operation       

Rennen ITG Classic Mesh Air Filter Set for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Classic Mesh Air Filter Set is a bespoke six-piece filtration package designed specifically for Rennen by JSR Individual Barrel Throttle Body systems. Each filter is engineered to fit directly onto the Rennen velocity stacks, combining classic motorsport styling with practical engine protection.

Fits:

• 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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

These filters use a mesh and foam construction to help protect the engine from dust, debris and airborne contaminants while allowing the ITB system to retain its free-flowing induction characteristics. The result is a period-inspired appearance with the essential filtration needed for road, fast-road and performance use.

Designed to complement the visual appeal of exposed velocity stacks, this filter set is ideal for Porsche owners who want the classic race-engine look while still helping protect valuable internal engine components.

What Do Classic Mesh Air Filters Do?

The air filters sit directly over the velocity stacks and filter incoming air before it enters the throttle bodies and combustion chambers.

They help provide:

• Protection from dust and debris
• Reduced risk of engine contamination
• Improved engine longevity
• Cleaner intake airflow
• Protection for cylinders, rings and valves
• Classic motorsport-inspired appearance
• Practical filtration for ITB conversions

Without suitable filtration, exposed velocity stacks can allow harmful particles to enter the engine.

Why Are Air Filters Needed with Barrel Throttle Bodies?

Rennen by JSR Barrel Throttle Bodies are designed for maximum airflow and instant throttle response. However, the open intake design means air is drawn directly into each throttle body.

Adding the correct filter set helps:

• Protect expensive engine internals
• Reduce premature engine wear
• Maintain reliable performance
• Support consistent tuning
• Preserve the benefits of velocity stacks
• Improve long-term durability
• Make the conversion more practical for road use

For any road-driven ITB-equipped Porsche, air filtration should be considered an essential part of the upgrade.

Why Choose the Rennen ITG Classic Mesh Filter Set?

This filter set is developed to fit Rennen velocity stacks correctly, offering a clean installation and authentic performance appearance.

Benefits include:

• Bespoke fit for Rennen velocity stacks
• Set of 6 individual filters
• Mesh and foam construction
• Classic exposed-stack styling
• Practical filtration protection
• Lightweight and compact design
• Ideal for Porsche ITB conversions
• Suitable for performance road and motorsport-style builds

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Individual Barrel Throttle Bodies are one of the most desirable upgrades for naturally aspirated Porsche engines.

Benefits include:

• Instant throttle response
• Improved airflow efficiency
• Enhanced engine breathing
• Stronger performance potential
• Distinctive induction sound
• Greater tuning flexibility
• Motorsport-inspired engine bay appearance
• More engaging driving experience

The Classic Mesh Air Filter Set allows owners to enjoy the look and sound of velocity stacks while adding important engine protection.

Rennen Crankshaft Position Sensor (CPS) for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen Crankshaft Position Sensor (CPS) is one of the most important components within a modern engine management system and an essential part of any Rennen by JSR Individual Barrel Throttle Body (ITB) conversion. The sensor continuously monitors crankshaft position and engine speed, providing the ECU with the precise information required to control ignition timing, fuel injection events and overall engine operation.

Fits:

• 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

When upgrading a Porsche engine to Individual Barrel Throttle Bodies and standalone engine management, accurate engine position data becomes critical. The ECU relies on the Crankshaft Position Sensor as its primary reference point for engine synchronisation. Without a reliable crankshaft signal, the ECU cannot accurately determine engine speed or crankshaft position, making precise ignition and fuel control impossible.

Whether you're building a fast road Porsche, a high-performance air-cooled engine or a dedicated motorsport application, the CPS provides the foundation for accurate ECU calibration and maximum engine performance.

What Does a Crankshaft Position Sensor Do?

The Crankshaft Position Sensor monitors the exact rotational position and speed of the engine crankshaft.

The sensor transmits this information directly to the ECU, allowing it to determine:

• Engine speed (RPM)
• Crankshaft position
• Ignition timing events
• Fuel injection timing
• Engine synchronisation
• Rev limiting functions
• Starting and idle control strategies

A properly functioning CPS helps provide:

• Accurate ignition timing
• Precise fuel delivery
• Reliable engine starting
• Smooth idle operation
• Stable engine performance
• Improved drivability
• Consistent ECU operation

The crankshaft sensor effectively serves as the heartbeat of the engine management system.

Why Is a CPS Essential for ITB Conversions?

Rennen by JSR Barrel Throttle Body conversions are typically paired with modern programmable engine management systems to unlock their full performance potential.

For the ECU to operate correctly, it must know the precise position of the crankshaft at all times. The CPS provides this information continuously and with extreme accuracy.

This allows:

• Sequential fuel injection control
• Accurate ignition timing maps
• Stable idle quality
• Improved throttle response
• Faster ECU processing
• Enhanced tuning accuracy
• Reliable high-RPM operation

Without a crankshaft position signal, the ECU simply cannot determine when to fire injectors or ignition coils.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies are engineered to maximise airflow while delivering an authentic motorsport driving experience.

Benefits include:

• Instant throttle response
• Increased airflow efficiency
• Improved engine breathing
• Enhanced power and torque potential
• Exceptional induction sound Increased driver engagement
• Modern EFI compatibility
• Stunning engine bay appearance

When combined with accurate crankshaft position monitoring, standalone engine management and professional calibration, the result is a highly responsive and exceptionally capable Porsche engine.

Why Choose the Rennen CPS?

Developed specifically for Rennen by JSR ITB applications, the sensor delivers the accuracy and reliability required for professional engine management installations.

Benefits include:

• Precise crankshaft position measurement
• Accurate engine speed monitoring
• Supports standalone ECU systems
• Essential for EFI conversions
• Improves ignition timing accuracy
• Supports sequential fuel injection
• Suitable for road and motorsport applications
• Reliable long-term performance       

Drive By Wire Actuator Assembly for Individual Throttle Body (ITB) Systems

The Rennen by JSR Drive By Wire (DBW) Actuator Assembly is a precision-engineered component designed specifically for use with Rennen by JSR Individual Throttle Body (ITB) conversions. This advanced actuator assembly replaces traditional mechanical throttle linkage systems with modern electronic throttle control, delivering precise throttle operation, improved drivability and seamless integration with modern engine management systems.

Fits:

• 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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

As performance engine builds continue to embrace electronic fuel injection and advanced ECU technology, drive-by-wire systems have become increasingly popular due to their ability to provide highly accurate throttle control, programmable throttle mapping and enhanced engine management capabilities.

For Porsche enthusiasts upgrading to a Rennen by JSR ITB system, the DBW actuator assembly provides a professional solution that combines modern control technology with the exhilarating throttle response and induction characteristics of individual throttle bodies.

What Does a Drive By Wire Actuator Assembly Do?

A Drive By Wire actuator electronically controls throttle opening based on driver input from the accelerator pedal rather than using a traditional cable-operated throttle linkage.

The actuator receives commands from the ECU and precisely controls throttle position to optimise engine response and performance.

Key functions include:

• Electronic throttle control
• Precise throttle positioning
• ECU integration
• Programmable throttle mapping
• Improved throttle response
• Enhanced engine management functionality
• Consistent throttle operation

This technology allows greater flexibility in engine calibration while improving overall drivability.

Why Is an ITB Upgrade So Appealing?

Individual Throttle Body systems remain one of the most desirable naturally aspirated performance upgrades available for Porsche engines.

Unlike conventional intake systems, each cylinder receives airflow through its own dedicated throttle body, reducing intake restrictions and dramatically improving responsiveness.

Benefits of a Rennen by JSR ITB upgrade include:

• Instant throttle response
• Improved airflow efficiency
• Enhanced engine breathing
• Increased performance potential
• Greater tuning flexibility
• Improved driver engagement
• Distinctive induction sound
• Motorsport-inspired driving experience

The combination of ITBs and Drive By Wire technology delivers modern engine control while retaining the raw character and responsiveness enthusiasts seek.

Why Install a Drive By Wire Actuator?

Modern electronic throttle control provides significant advantages over traditional cable-operated systems.

Benefits include:

• More accurate throttle control
• Smooth throttle transitions
• Customisable throttle maps
• Improved ECU integration
• Enhanced drivability
• Simplified installation in EFI conversions
• Compatibility with advanced engine management features
• Improved reliability and consistency

For performance builds, a DBW actuator can unlock advanced tuning strategies that are difficult to achieve with conventional throttle linkages.

PMO EFI Throttle Body Kit – Black Anodized “R” Finish – 40mm / 46mm / 50mm

Upgrade your classic air-cooled Porsche to modern electronic fuel injection with the PMO EFI Throttle Body Kit, available in 40mm, 46mm and 50mm sizes with the distinctive Black Anodized “R” finish.

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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 914-6 (1970-1976)

Designed for air-cooled six-cylinder Porsche engines from 1965 to 1998, PMO individual throttle bodies combine the classic appearance and response of traditional carburettors with the accurate fuel control and tuning possibilities of modern EFI.

The Black Anodized “R” finish gives the throttle bodies a purposeful vintage competition appearance, making them particularly suited to performance, restomod and motorsport-inspired Porsche engine builds.

Inlet Manifolds, Fuel Injectors and Throttle Position Sensor (TPS) are Not Included

Please note that inlet manifolds, fuel injectors and the TPS shown in product imagery are for reference and are not included with the kit.

What Does the PMO EFI Throttle Body Kit Do?

PMO individual throttle bodies replace carburettors or the existing induction system as part of a complete electronic fuel injection conversion.

Each cylinder receives its own throttle bore, providing direct and responsive airflow. Fuel is delivered through individual injectors controlled by a compatible programmable ECU.

When correctly installed and tuned, benefits can include:

• Sharper throttle response
• Precise electronic fuel control
• Improved engine tuneability
• Better cold starting and driveability
• Accurate control of air/fuel ratios
• Potential improvements in performance and fuel efficiency
• Individual throttle response for each cylinder
• Classic competition appearance with modern EFI technology

40mm, 46mm or 50mm – Which Size?

PMO offers three throttle body sizes to suit different air-cooled Porsche engine specifications.

• 40mm – Ideal for smaller-capacity and road-focused engines where good air velocity, throttle response and low-to-mid-range performance are important.
• 46mm – Suitable for larger-capacity, fast-road and modified engines requiring increased airflow while maintaining excellent throttle response.
• 50mm – Designed for highly modified, large-capacity and competition engines where maximum airflow and high-RPM performance are required.

Correct sizing depends on engine capacity, cylinder heads, camshafts, compression ratio, intended RPM range and power requirements. Consult your engine builder when selecting the appropriate size.

Precision PMO Construction

PMO EFI throttle bodies are precision CNC machined and hand assembled in Anaheim, California using aerospace-grade materials.

Sealed ball bearings provide durability, while the one-piece throttle shaft maintains accurate alignment for smooth and consistent throttle operation.

Tapered 52mm intake throats improve airflow into the throttle bodies, while billet fuel rails accommodate Bosch-style fuel injectors.

EFI Management Compatibility

PMO EFI throttle bodies can be used with programmable engine management systems including Haltech, MegaSquirt, MoTeC and other suitable aftermarket EFI controllers.

The ECU must be correctly configured and tuned for the individual engine specification.

Injector size, fuel pressure, sensors and ECU configuration should be discussed with your engine builder or EFI system supplier before installation.

Converting from Carburettors to EFI

A carburettor-to-EFI conversion requires a suitable high-pressure fuel system in addition to the throttle bodies.

A fuel pump capable of approximately 60 psi is required. The Walbro GSL393 external universal inline fuel pump, rated at approximately 160 LPH, is one suitable option. Another correctly specified 60 psi EFI fuel pump can also be used.

Fuel lines, filters, pressure regulation and associated components must be suitable for EFI operating pressures.

• Fuel rail retaining/injector clip – 534-102
• TPS sensor – 17123852
• Bosch-style fuel injectors
• Suitable high-pressure EFI fuel pump
• Compatible programmable ECU

Fuel injector specification should be selected according to engine capacity, expected power output, fuel type and EFI system requirements.

PMO Black Anodized “R” EFI Throttle Bodies for Air-Cooled Porsche

PMO individual throttle bodies provide an excellent solution for Porsche owners wanting the immediate response and appearance of classic individual induction combined with modern electronic fuel injection.

Available in 40mm, 46mm and 50mm sizes, the system can be matched to road, fast-road, restomod and competition air-cooled Porsche flat-six engines.

The Black Anodized “R” finish provides a distinctive period motorsport appearance, making these throttle bodies particularly suited to classic Porsche 911 performance builds where engine-bay appearance is as important as performance.

PMO EFI Throttle Body Kit – Natural Aluminium Finish – 40mm / 46mm / 50mm

Upgrade your classic air-cooled Porsche to modern electronic fuel injection with the PMO EFI Throttle Body Kit, available with 40mm, 46mm or 50mm throttle bodies in a natural aluminium finish.

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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 914-6 (1970-1976)

Designed for air-cooled six-cylinder Porsche engines from 1965 to 1998, PMO individual throttle bodies combine the classic appearance and response of traditional carburettors with the accurate fuel control and tuning possibilities of modern EFI.

Whether building a responsive road engine, fast-road Porsche or high-performance competition engine, the choice of three throttle body sizes allows the induction system to be matched more closely to your engine specification.

Inlet Manifolds, Fuel Injectors and Throttle Position Sensor (TPS) are Not Included

Please note that inlet manifolds, fuel injectors and the TPS shown in product imagery are for reference and are not included with the kit.

What Does the PMO EFI Throttle Body Kit Do?

PMO individual throttle bodies replace carburettors or the existing induction system as part of an electronic fuel injection conversion.

Each cylinder receives its own throttle bore, providing direct airflow into the engine. Fuel delivery is then electronically controlled through individual injectors and a compatible aftermarket ECU.

When correctly installed and tuned, benefits can include:

• Sharper throttle response
• Precise electronic fuel control
• Improved engine tuneability
• Improved cold starting and driveability
• Better control of air/fuel ratios
• Potential improvements in performance and fuel efficiency
• Individual throttle response for each cylinder
• Classic carburettor-style appearance with modern EFI control

40mm, 46mm or 50mm – Which Size?

PMO EFI throttle bodies are available in three bore sizes to suit different engine specifications.

• 40mm – Well suited to smaller-capacity and road-focused engines where air velocity, low-to-mid-range response and driveability are important.
• 46mm – A good choice for larger-capacity, modified and fast-road engines requiring increased airflow while retaining strong throttle response.
• 50mm – Designed for highly modified, large-capacity and competition engines where maximum airflow and high-RPM performance are priorities.

Correct sizing depends on engine capacity, cylinder heads, camshafts, compression ratio, intended RPM range and power requirements. Consult your engine builder when selecting the appropriate size.

Precision PMO Construction

PMO EFI throttle bodies are precision CNC machined and hand assembled in Anaheim, California using high-quality aerospace-grade materials.

Sealed ball bearings provide durability, while the one-piece throttle shaft maintains accurate alignment and helps provide smooth, consistent throttle operation.

Tapered 52mm intake throats improve airflow into the throttle bodies, while billet fuel rails accommodate Bosch-style fuel injectors.

EFI Management Compatibility

PMO EFI throttle bodies can be used with programmable engine management systems including Haltech, MegaSquirt, MoTeC and other suitable aftermarket EFI controllers.

The ECU must be correctly configured and professionally tuned for the individual engine specification.

Injector size, fuel pressure, sensors and ECU configuration should be discussed with your engine builder or EFI system supplier before installation.

Converting from Carburettors to EFI

Converting a carburetted Porsche engine to EFI requires a suitable high-pressure fuel system in addition to the throttle bodies.

A fuel pump capable of approximately 60 psi is required. The Walbro GSL393 external inline fuel pump, rated at approximately 160 LPH, is one suitable option, although another correctly specified 60 psi universal EFI fuel pump may also be used.

Fuel lines, filtration, pressure regulation and other associated components must also be suitable for EFI operating pressures.

Associated components to added include:

• Fuel rail retaining/injector clip – 534-102
• TPS sensor – 17123852
• Bosch-style fuel injectors
• Suitable high-pressure EFI fuel pump
• Compatible programmable ECU

Injector specification should be selected according to engine capacity, expected power output, fuel type and EFI system requirements.

PMO EFI Throttle Body Kits for Air-Cooled Porsche

PMO individual throttle bodies provide an ideal solution for owners wanting the appearance and immediate response associated with classic carburettor induction while gaining the control and tuning potential of electronic fuel injection.

Available in 40mm, 46mm and 50mm sizes, PMO EFI throttle bodies can be matched to a wide variety of standard, modified and competition air-cooled Porsche flat-six engines.

The natural aluminium finish provides a clean, period-inspired appearance that complements classic Porsche engine bays while concealing modern EFI technology within a traditional individual-throttle-body layout.

Electronic individual throttle body kit by Adapt Motorsport for classic Porsche 911 engines. This drive-by-wire system uses separate throttle bodies for all six cylinders, with independent electronic control for the left and right cylinder banks.

Fits:

• 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

What This Product Does

The eITB kit electronically controls airflow to each cylinder without conventional throttle cables or linkages between the pedal, cylinder banks and individual throttles. Its two direct-drive motors incorporate throttle-position sensing, allowing a suitable aftermarket ECU to manage idle opening, pedal sensitivity and bank-specific throttle operation.

Functions

• Controls six individual throttle bodies through two independent drive-by-wire motors
• Allows throttle sensitivity and pedal response to be calibrated within the ECU
• Uses the electronic throttles to regulate idle airflow without a separate idle-control valve
• Provides individual air-bypass adjustment for cylinder balancing
• Supplies vacuum connections for balancing equipment, brake servos and other vacuum-operated devices
• Supports compatible ECU strategies such as torque management, launch control and automatic throttle blipping

Technical Details

• Base kit includes six pre-assembled individual throttle bodies, two DBW motors with integrated sensors, six intake adapters, two fuel rails and two throttle-driver connector kits
• Internal throttle-position sensors use dual-channel redundancy, with independent motors and sensing for each cylinder bank
• Fuel rails are designed for short EV14 fuel injectors
• Construction includes stiff throttle couplings, sealed roller bearings and thermal-barrier spacers between the throttle assemblies and cylinder heads
• Selectable 2-bolt and 3-bolt configurations are offered with multiple port and butterfly diameters; intake-manifold and tapered velocity-stack adapter options are available
• Compatible control systems must operate two independent throttle motors and provide six analogue sensor inputs plus two complete four-pin half-bridge driver outputs

Why Replacement Matters

This kit is intended for EFI conversions and modified classic Porsche engines requiring electronically managed individual throttles. Removing mechanical cables and cross-bank linkages eliminates their adjustment, backlash and friction points while giving the calibrator direct control over throttle opening. Installation, balancing and mapping should be completed by a specialist familiar with dual-DBW ITB systems. Adapt Motorsport identifies MoTeC M150, Emtron KV8 and ECUmaster Pro 8 as suitable examples, although ECU compatibility must be confirmed for each installation. Fail-safe DBW functions, engine limp modes and dual wideband oxygen sensors for closed-loop tuning of both banks are required or recommended as applicable.

Important

• Two-bolt versions are not compatible with the standard air-conditioning compressor
• This eITB system is specified by Adapt Motorsport for off-road and racing applications only

This naturally aspirated GT3 manifold electronic throttle conversion kit by Adapt Motorsport is designed for classic Porsche 911 engines with two-bolt cylinder heads. 

Fits

• 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

What This Product Does

The kit adapts large-volume 996 GT3-style intake manifolds and Bosch electronic throttle control to compatible air-cooled Porsche 911 engine builds. Adapt Motorsport intake components account for the shorter cylinder spacing of air-cooled engines and provide the fuel-rail, resonance-flap and vacuum-control hardware needed to complete the intake assembly.

Functions

• Regulates intake airflow through an 82mm Bosch electronic throttle body
• Connects GT3-style intake hardware to two-bolt air-cooled cylinder heads
• Supports short, medium or long EV14-style fuel injectors using the appropriate rail spacers
• Controls the intake resonance flap through a vacuum canister, solenoid and check valve
• Provides vacuum connections for the brake booster, idle-air bypass and supporting systems
• Measures manifold pressure and intake temperature through a Bosch T-MAP sensor

Technical Details

• 996 GT3-style intake manifold port diameter: 49mm
• Two-bolt adapters: 40mm or 42mm ports for 2.7, 3.0 and 3.2 engines
• Bosch electronic throttle body diameter: 82mm
• Standard Bosch T-MAP sensor rating: 1.15 bar; a 3.0-bar version is offered separately
• AMS manifolds use cast-aluminium construction, while the resonance flap and intake T-piece are CNC-machined and black anodised

Base Kit Contents

• AMS high-flow intake T-piece with vacuum and T-MAP sensor connections
• AMS fuel rails with fittings
• Bosch 82mm electronic throttle body and connector kit
• AMS CNC-machined resonance-flap assembly with sealed roller bearings
• Bosch 1.15-bar temperature and pressure sensor with connector
• Throttle, resonance-flap and intake-adapter sleeves with hose clamps
• Vacuum canister, solenoid, check valve, electrical connector and hoses
• Required fasteners and fittings

Configuration Information

Separate versions accommodate two-bolt and three-bolt cylinder heads, with the relevant adapter port sizes. Each configuration can be supplied either with or without a pair of AMS GT3 intake manifolds, so the cylinder-head pattern, port diameter and manifold requirement must be confirmed before selection.

FAQs

• Is the electronic throttle body included?
  Yes. Every base kit contains the Bosch 82mm electronic throttle body and its connector kit.
• Are intake manifolds supplied?
  This depends on the chosen configuration. Adapt Motorsport offers versions both including and excluding the pair of AMS GT3 intake manifolds.
• Does the system require calibration?
  Yes. The electronic throttle, T-MAP sensor, injectors and resonance-flap controls must be configured within a compatible engine-management system.
• Which cylinder-head patterns are supported?
  Two-bolt versions suit 2.7, 3.0 and 3.2 engines, while three-bolt versions are intended for 964 and 993 3.6-litre applications.

This Adapt Motorsport E-Throttle conversion kit replaces the original throttle centre section fitted to Porsche 964 and non-VarioRam 993 intake manifolds. It combines a Bosch 74mm electronic throttle with a CNC-machined resonance tube assembly and Bosch T-MAP sensing.

Fits:

• 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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 993 (911) C2 1994-95
• Porsche 993 (911) C4 1994-95
• Porsche 993 (911) C2S 1994-95
• Porsche 993 (911) C4S 1994-95

What This Product Does

The kit converts the 964 / non-VarioRam 993 inlet manifolds from mechanical or cable-operated throttle control to electronic drive-by-wire operation. When used with a suitable aftermarket ECU and correctly calibrated, the throttle can also perform electronic idle-control functions without the factory idle-air bypass valve.

Functions

• Replaces the original Porsche throttle centre section.
• Provides electronically managed throttle control.
• Combines intake-air temperature and manifold-pressure measurement through a Bosch T-MAP sensor.
• Removes ageing throttle cables or mechanical linkages from the control system.
• Supports ECU-managed idle control when correctly configured.
• Allows compatible engine management to support features such as cruise control, automatic throttle blipping, traction control and boost control.

Technical Details

• Bosch 74mm electronic throttle with connector kit.
• CNC-machined aluminium throttle intake adapter.
• CNC-machined aluminium resonance tube assembly with flap, sealed roller bearings and vacuum actuator.
• Choice of 1.15 bar T-MAP sensor for naturally aspirated applications or 3.0 bar sensor for turbo applications.
• T-MAP connector kit, throttle and sensor fasteners, and vacuum hose included with the centre-section kit.
• The vacuum kit is not included with the centre-section configuration.

Kit Includes:

• CNC machined aluminium Throttle intake adapter
• CNC machined aluminium resonance tube assembly including flap assembly, sealed roller bearings and vacuum actuator
• Bosch 74mm Electronic Throttle and connector kit
• Bosch T-MAP sensor 1.1 bar or 3.0bar as standard options, with connector kit
• Fasteners for throttle and T-MAP.
• Vacuum hose 
  
  

Additional Parts Required

• Vacuum solenoid and canister.
• Air filter and suitable adapter.
• Rubber sleeves and hose clamps for the intake-manifold ports; compatible original Porsche components may be reused.
• A compatible electronic accelerator pedal, aftermarket ECU and appropriate wiring, programming and safety calibration.

Optional Components

• 964/993 vacuum kit and mounting hardware.
• 964/993 electronic accelerator pedal kit.
• 993 adapter for retaining the factory rubber intake, airflow meter and airbox.
• 964 adapter for the factory rubber intake and airbox, including an airflow-meter delete kit.
• 964/993 air-filter adapter kit or advanced fuel rail kit.

Why Replacement Matters

Converting to drive-by-wire removes cable drag, stretch and resistance from multi-part mechanical linkages. It also enables the fitted engine-management system to control throttle movement and idle behaviour electronically. Installation and calibration should be completed by an experienced technician using suitable ECU safety strategies.

Adapt Motorsport E-Throttle drive-by-wire conversion kit for Porsche 964 and non-VarioRam 993 intake manifolds. It combines a Bosch 74mm electronic throttle, CNC-machined aluminium components and Bosch T-MAP sensing, with complete configurations adding intake adaptors and standard fuel rails.

Fits:

• 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

What This Product Does

The conversion replaces the original Porsche throttle centre section fitted to 964 and non-VarioRam 993 intake manifolds. A compatible aftermarket ECU can manage throttle operation electronically and may also use the E-Throttle for idle control, removing the need for the ageing factory idle-air bypass valve.

Functions

• Converts the intake system from mechanical or cable-operated control to drive-by-wire operation.
• Measures intake-air temperature and manifold pressure through a combined Bosch T-MAP sensor.
• Allows compatible engine management to regulate idle through the electronic throttle.
• Removes cable drag, stretch and resistance associated with multi-part mechanical linkages.
• Supports ECU-dependent functions such as cruise control, automatic throttle blipping, traction control and boost control.

Technical Details

• Bosch 74mm electronic throttle with connector kit.
• CNC-machined aluminium throttle intake adaptor.
• CNC-machined aluminium resonance tube with flap assembly, sealed roller bearings and vacuum actuator.
• Bosch 1.15 bar T-MAP sensor option for naturally aspirated engines.
• Bosch 3.0 bar T-MAP sensor option for turbocharged applications.
• Complete two-bolt and three-bolt configurations are offered with standard fuel rails and intake adaptors.

Kit Configurations

• Centre-section kit: throttle adaptor, resonance tube assembly, Bosch electronic throttle, selected T-MAP sensor, connector kits, fasteners and vacuum hose.
• Complete two-bolt kit: centre section, two-bolt intake adaptors in 34mm, 39mm, 40mm or 42mm sizes, 964 manifold adaptors and standard fuel rails.
• Complete three-bolt kit: centre section, three-bolt intake adaptors in 42mm or 43.5mm sizes, manifold adaptors and standard fuel rails.

Additional Parts Required

• Vacuum solenoid and canister.
• Air filter and suitable adaptor.
• Rubber sleeves and hose clamps for the intake-manifold ports; compatible original Porsche parts may be reused.
• Compatible electronic accelerator pedal, aftermarket ECU, wiring and engine-specific calibration.

Optional Components

• 964/993 vacuum kit and mounting hardware.
• 964/993 electronic accelerator pedal kit.
• 993 adaptor for retaining the factory rubber intake, airflow meter and airbox.
• 964 adaptor for the factory rubber intake and airbox, including an airflow-meter delete kit.
• 964/993 air-filter adaptor kit or advanced fuel rail kit.

Why Replacement Matters

Drive-by-wire conversion removes ageing cables and complex mechanical linkages from the throttle-control system while allowing a suitable ECU to manage throttle position and idle behaviour electronically. Correct wiring, programming and safety calibration are essential, so installation should be completed by an experienced technician familiar with aftermarket engine management.

FAQs

• Does this fit a VarioRam 993 manifold?
  No. The conversion is specified for Porsche 964 and non-VarioRam 993 intake manifolds.
• Which T-MAP sensor should be selected?
  The 1.15 bar option is intended for naturally aspirated applications, while the 3.0 bar version is provided for turbocharged engines.
• Is an aftermarket ECU required?
  Yes. The electronic throttle requires compatible engine management, suitable wiring and correct calibration.
• Is the vacuum kit included?
  The centre-section configuration excludes the separate vacuum solenoid and canister kit.
• Can the original airbox be retained?
  Adapt Motorsport lists separate 964 and 993 adaptors for installations retaining applicable factory intake and airbox components.

Sizes Porsche 911 intake manifolds
Carburetor/Bosch MFI Ø34mm engine side - Ø40mm ITB side. Recommended for early 2.7ltr engines

Injectors options that can be used - 260cc / 300cc / 380cc / 420cc / 480cc / 520cc

This is a direct replacement kit for replacing carburetors while keeping the OEM look in your engine bay. 

The intake manifolds and riser plates are manufactured out of a single piece of 6082 aluminum and come in 2 styles. These differ in design due to the shape of the mounting flange for the cylinder head. The intake manifold can be used as replacement parts for the OEM part when damaged or has to be replaced*.
The ITBs are manufactured out of cast aluminum, whist the fuel rails are made out of aluminum 6060 extrusion profile and come with AN6 ORB connection for the fuel lines. The direct mount fuel pressure regulator is directly mounted to the fuel rails, so in this case you don’t need to drill additional holes in the engine bay for mounting a fuel pressure regulator.
The throttle linkage and all mounting hardware is made from stainless steel and the pivoting point of the throttle linkage is a ball and socket design for smooth operation. The levers allow you to adjust and finetune mechanical movement of the ITBs

The dimensions of the assembly are the same as the OEM carburetor setup and the riser plate comes with same mounting holes as the OEM carburetors, in this way you are able to use the OEM air filter box and OEM airhorns. Also the riser plates come with mounting options for an air intake temperature sensor, this is nicely hidden away between the ITBs. The diameter for the ITBs in the riser plate is 45mm. There is also an option for using airhorns, In this case you don’t need the riser plates.

The crank sensor and trigger wheel kit are additional and this type of kit is needed when using ITBs like these. Besides switching to ITBs you will need a stand alone ECU to get the fuel injection to work. Our kit only works with engines like the 3.0ltr that came with a “ big distributor”. You can leave the distributor or you can remove this unit when you are going to use a discoil type of ignition. In for case an adapter is included in the crank sensor kit. The pulley comes in 2 dimensions to choose from, a Ø116mm pulley and Ø126,5mm pulley.

Fuel injectors, fuel lines, standalone ECU, wiring harness are NOT included in the kit.

*In case of using as a replacement part 3 mounting holes for the carburetors or ITBs need to be re thread with a timesert or helicoil. Otherwise it is impossible to mount a threaded stud.

Kit Includes
2 x Full billet, hard anodised intake manifolds
6 x ITB complete with lever assembly
6 x Airhorns 45mmØx30mm
2 x Fuel rail with mounting hardware
1 x Throttle linkage with 2 throttle connection rods
1 x Direct mount fuel pressure regulator
2 x Riser plates with 1 air temperature sensor (for use with OEM air filter box)
1 x Crank sensor and trigger wheel kit (optional)
All needed gaskets and mounting hardware.

The Adapt Motorsport GT3 manifold individual throttle body kit enables 996 GT3-style intake manifolds and a resonance flap system to be integrated with an existing ITB-equipped classic Porsche 911 engine. Configurations are available with a PA12 nylon or machined aluminium intake T-piece, with manifold inclusion determined by the selected option.

Fits:
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 964 (911) C2 1989-93
Porsche 964 (911) C4 1989-93
Porsche 993 (911) C2 1994-95
Porsche 993 (911) C4 1994-95
Porsche 993 (911) C2S 1994-95
Porsche 993 (911) C4S 1994-95

What This Product Does

This system provides the hardware needed to connect an individual throttle body installation to large-volume GT3 intake manifolds. Its resonance flap assembly, intake T-piece, filter and vacuum-control components form an integrated intake arrangement for a custom classic 911 engine build.

Functions

• Connects compatible GT3 intake manifolds to an existing individual throttle body system
• Supports operation of the supplied intake resonance flap
• Provides filtered air through the included K&N air filter
• Supplies the vacuum hardware, hoses and fittings required for flap control
• Allows a choice of PA12 nylon or machined aluminium intake T-piece

Technical Details

• GT3 manifold port diameter: 49mm
• Reference comparison stated by the manufacturer: standard 964 manifold 43mm and 3.2 manifold 39mm
• Base nylon T-piece manufactured from automotive-grade PA12
• CNC-machined resonance flap assembly uses sealed roller bearings
• AMS machined components have a black anodised finish
• Custom adapter option comprises six machined aluminium adapters made to supplied ITB dimensions

Kit Contents and Options

The base kit contains the intake T-piece, K&N air filter, CNC-machined resonance flap assembly, four resonance-flap and throttle sleeves, six intake-adapter sleeves, hose clamps, vacuum canister, solenoid, check valve, connector kit, mounting hardware, vacuum hoses, fasteners and fittings.

Nylon T-piece configurations are offered with or without a pair of AMS GT3 intake manifolds. Aluminium T-piece configurations use a machined filter adapter matching the resonance flap assembly and are also offered with or without manifolds.

The ITB-to-GT3 adapter set adds six custom aluminium adapters. These require accurate measurements from the individual throttle body installation and are only supplied with the applicable base-kit options; the adapter set is not offered separately.

Why This Kit May Be Required

This kit is intended for engine builds where an existing ITB system is to be combined with GT3-style intake plenums and a controlled resonance flap. Correct measurements, mechanical installation and engine-specific calibration remain essential because throttle body dimensions and modified engine specifications can differ between applications.

FAQs

• Are intake manifolds included?
  Manifold inclusion depends on the selected configuration. Options are available both with and without a pair of AMS GT3 intake manifolds.
• What T-piece materials are offered?
  The system can be configured with an automotive-grade PA12 nylon T-piece or a machined aluminium T-piece and filter adapter.
• Are adapters supplied for the existing throttle bodies?
  Six custom aluminium adapters can be specified, but accurate dimensions from the throttle body kit must be provided for their design and manufacture.
• Can the custom adapter set be ordered separately?
  No. The manufacturer specifies that the adapter set is only supplied with the applicable base-kit configurations.
• Does installation require engine calibration?
  Engine management and fuelling should be configured for the individual engine, throttle bodies and intake arrangement by a suitably experienced specialist.

Rennen ITG Air Filter Assembly - Normal for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Air Filter Assembly - Normal is a complete induction filtration package designed specifically for use with Rennen by JSR Individual Barrel Throttle Body (ITB) systems. The kit includes premium ITG foam air filters together with the required mounting and securing hardware for installation directly onto the Rennen velocity stacks.

Fits:

• 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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

While Individual Throttle Bodies dramatically improve airflow, throttle response and engine performance, they also require effective filtration to protect the engine from dust, dirt and airborne contaminants. The Rennen ITG Air Filter Assembly provides this protection while maintaining the unrestricted airflow characteristics that make Barrel ITB conversions so desirable.

Designed to integrate seamlessly with the Rennen by JSR induction system, this filter assembly offers an excellent balance between airflow, filtration efficiency and engine protection, making it ideal for fast road, touring and occasional track use.

What Does the ITG Air Filter Assembly Do?

The ITG Air Filter Assembly protects the engine by filtering incoming air before it enters the throttle bodies and combustion chambers.

Its primary functions include:

• Preventing dirt ingestion
• Protecting cylinders and piston rings
• Protecting valves and valve seats
• Maintaining clean airflow
• Supporting engine longevity
• Preserving performance
• Reducing engine wear

The filters allow the engine to breathe freely while preventing harmful contaminants from entering the intake system.

Why Are Air Filters Essential on ITB Systems?

Individual Throttle Bodies are designed to maximise airflow and engine response. Without air filters, debris and contaminants can be drawn directly into the engine.

Proper filtration helps:

• Protect expensive engine components
• Prevent premature cylinder wear
• Maintain engine reliability
• Reduce intake contamination
• Support consistent tuning
• Preserve airflow characteristics
• Improve long-term performance

For road-driven vehicles, filtration should always be considered an essential part of any ITB installation.

Why Choose ITG Foam Filters?

ITG filters are widely recognised throughout motorsport and performance automotive applications for their excellent combination of airflow and filtration efficiency.

Benefits include:

• High airflow capacity
• Excellent filtration performance
• Lightweight construction
• Washable and reusable design
• Motorsport-proven technology
• Long service life
• Consistent airflow characteristics
• Ideal for high-performance engines

The foam filter construction allows superior airflow while maintaining effective protection against airborne contaminants.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies provide one of the most exciting induction upgrades available for Porsche engines.

Benefits include:

• Instant throttle response
• Improved airflow efficiency
• Enhanced engine breathing
• Increased power potential
• Exceptional induction sound
• Improved driver engagement
• Greater tuning flexibility
• Stunning engine bay appearance

The addition of the ITG Air Filter Assembly ensures these performance gains can be enjoyed while maintaining essential engine protection.

Why Choose the Rennen ITG Air Filter Assembly?

This kit has been developed specifically to work with Rennen by JSR Barrel ITB systems and velocity stacks.

Benefits include:

• Complete filtration solution
• Includes ITG foam filters
• Includes mounting and securing hardware
• Direct fitment to velocity stacks
• Maintains unrestricted airflow
• Protects engine internals
• Suitable for road and track applications
• Professional installation finish       

Rennen ITG Air Filter Assembly - Rally for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen ITG Air Filter Assembly - Rally is the ultimate filtration solution for Rennen by JSR Individual Barrel Throttle Body (ITB) conversions. Designed for demanding road, rally, touring and motorsport applications, this upgraded filtration package combines premium ITG foam filters with enhanced sealing technology and dedicated mounting hardware to provide superior engine protection in dusty and challenging operating environments.

Fits:

• 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 964 (911) C2 1989-93
• Porsche 964 (911) C4 1989-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93

Like the standard ITG Air Filter Assembly, the Rally version includes high-performance ITG foam filters and all the required hardware for secure installation onto the velocity stacks. However, the Rally specification takes protection one step further with a more robust construction and improved sealing against airborne dust and contaminants.

For owners operating their Porsche in rally, endurance, touring or harsh road conditions, the Rally Air Filter Assembly provides additional peace of mind without compromising the airflow and throttle response benefits of the Rennen by JSR Barrel ITB system.

What Does the Rally ITG Air Filter Assembly Do?

The Rally Air Filter Assembly filters incoming air before it enters the throttle bodies and combustion chambers.

Its primary functions include:

• Preventing dust ingestion
• Protecting cylinders and piston rings
• Protecting valves and valve seats
• Reducing intake contamination
• Supporting engine longevity
• Maintaining airflow efficiency
• Preserving engine performance

The enhanced sealing design provides an additional layer of protection in environments where airborne dust and debris are more prevalent.

Why Are Air Filters Essential on ITB Systems?

Individual Throttle Bodies significantly increase airflow potential and engine responsiveness. However, without effective filtration, harmful particles can enter the engine and cause accelerated wear.

Proper air filtration helps:

• Protect expensive engine components
• Reduce internal engine wear
• Maintain tuning consistency
• Protect piston rings and cylinder bores
• Improve long-term reliability
• Preserve engine performance
• Reduce maintenance costs

For road and motorsport applications alike, high-quality air filtration should always be considered an essential part of any ITB installation.

Why Choose the Rally Version?

The Rally Air Filter Assembly has been developed for environments where maximum engine protection is required.

Compared to the standard filter assembly, the Rally version offers:

• Improved sealing against dust ingress
• More robust filter mounting arrangement
• Enhanced durability
• Greater protection in harsh environments
• Improved filtration security during prolonged use
• Ideal for rally, touring and endurance applications
• Additional confidence for high-value performance engines

This makes it the preferred option for owners seeking maximum engine protection without sacrificing performance.

Why Choose ITG Foam Filters?

ITG filters are widely respected throughout motorsport and performance automotive applications for their ability to combine high airflow with exceptional filtration efficiency.

Benefits include:

• High airflow capacity
• Excellent filtration performance
• Washable and reusable design
• Lightweight construction
• Motorsport-proven technology
• Long service life
• Consistent airflow characteristics
• Suitable for high-performance engines

The foam construction provides outstanding protection while supporting the airflow demands of Individual Throttle Body systems.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies provide one of the most exciting induction upgrades available for Porsche engines.

Benefits include:

• Instant throttle response
• Improved airflow efficiency
• Increased engine breathing capacity
• Greater power potential
• Enhanced torque delivery
• Exceptional induction sound
• Motorsport-inspired driving experience
• Stunning engine bay presentation

The Rally Air Filter Assembly ensures these benefits can be enjoyed while providing enhanced protection for valuable performance engines.

Why Choose the Rennen ITG Rally Air Filter Assembly?

Developed specifically for Rennen by JSR Barrel ITB systems, this filtration package offers the ideal balance between airflow, protection and durability.

Benefits include:

• Enhanced dust sealing
• Premium ITG filtration technology
• Complete installation solution
• Includes mounting and securing hardware
• Maintains unrestricted airflow
• Protects engine internals
• Suitable for road, rally and motorsport use
• Professional installation finish