Electronic Fuel Injection Throttle Kits

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.

Drive by wire throttle body intake system - Carbon Fibre. 
Throttle body diameter - 82mm



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

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

• 6 precision-engineered runners crafted from anodized structural aluminum
• 2 anodized fuel rails, also made from structural aluminum for durability and performance
• Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
• Intake T-tube in glass-reinforced thermoplastic, compatible with a 82mm DBW throttle body
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
• 6 high-temperature silicone couplers for the manifold-to-runner connections
• 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
• TMAP sensor for accurate air intake measurements
• Vacuum reservoir for optimized engine performance
• All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

• 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
• Direct mount of fuel rail to the runner for perfect injector press fit.
• CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
• Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
• Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
• All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
• Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications

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Related, superseded, cross reference or alternative numbers for comparison.

99311062704

The product you are viewing cross references to these numbers

Drive by wire throttle body intake system - Glass Reinforced Thermoplastic. 
Throttle body diameter - 82mm



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

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

• 6 precision-engineered runners crafted from anodized structural aluminum
• 2 anodized fuel rails, also made from structural aluminum for durability and performance
• Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
• Intake T-tube in glass-reinforced thermoplastic, compatible with a 82mm DBW throttle body
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
• 6 high-temperature silicone couplers for the manifold-to-runner connections
• 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
• TMAP sensor for accurate air intake measurements
• Vacuum reservoir for optimized engine performance
• All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

• 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
• Direct mount of fuel rail to the runner for perfect injector press fit.
• CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
• Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
• Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
• All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
• Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications

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

99611061870

The product you are viewing cross references to these numbers

Drive by wire throttle body intake system - Carbon Fibre. 
Throttle body diameter - 92mm 



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

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

• 6 precision-engineered runners crafted from anodized structural aluminum
• 2 anodized fuel rails, also made from structural aluminum for durability and performance
• Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
• Intake T-tube in glass-reinforced thermoplastic, compatible with a 92mm DBW throttle body
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
• 6 high-temperature silicone couplers for the manifold-to-runner connections
• 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
• TMAP sensor for accurate air intake measurements
• Vacuum reservoir for optimized engine performance
• All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

• 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
• Direct mount of fuel rail to the runner for perfect injector press fit.
• CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
• Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
• Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
• All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
• Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications

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

99311062704

The product you are viewing cross references to these numbers

Drive by wire throttle body intake system - Glass Reinforced Thermoplastic. 
Throttle body diameter - 92mm



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

Silverlake Projects' complete Drive-by-Wire (DBW) intake system, designed specifically for 964 and 993 engines to be converted to DBW (drive by wire) throttle body.

Our system includes:

• 6 precision-engineered runners crafted from anodized structural aluminum
• 2 anodized fuel rails, also made from structural aluminum for durability and performance
• Dual GT3-style intake manifolds in carbon fiber for weight reduction and strength
• Intake T-tube in glass-reinforced thermoplastic, compatible with a 92mm DBW throttle body
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with a vacuum actuator
• 6 high-temperature silicone couplers for the manifold-to-runner connections
• 4 high-temperature silicone couplers for the manifold-to-T-tube/resonance flap connections
• TMAP sensor for accurate air intake measurements
• Vacuum reservoir for optimized engine performance
• All mounting hardware made from lightweight titanium alloy

Inlet port sizes: 42mm

Weighing just 5.5 kg (12 lbs), our intake system is nearly half the weight of the stock 964 intake, which weighs 11.5 kg (25.3 lbs), offering a substantial weight savings for enhanced performance

Why our system?

• 50% lighter than stock. Lighter than most systems given use of carbon fiber, thermoplastics, and titanium.
• Direct mount of fuel rail to the runner for perfect injector press fit.
• CNC machined PTFE inserts in between the cylinder head and the runner for a superior insulation from the heat from the cylinder heads, especially when in idle and street applications.
• Custom nitrile O-rings in between the runner and the cylinder head, and the intake T and throttle body for a perfect seal
• Silverlake’s precision-molded OEM+ silicone sleeves with a much higher temperature resistance than rubber, offering a perfect fit with the opposing components for better airflow, and an unmatched appearance.
• All mounting fasteners in Tin coated titanium alloy, for reduced weight and un unbeatable appearance
• Your choice between 82mm or 92mm drive by wire throttle bodies, the latter offering 25% more surface for high displacement high performance applications

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

99611061870

The product you are viewing cross references to these numbers

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.

ECU and Ignition system conversion kit.

Fits
Porsche 964 C2 - 1989 to 1994
Porsche 964 C4 - 1989 to 1994

This kit is a modern update to the 964 (911) ignition system. This system takes the management of the car into the digital age and allows greater control over ignition and fueling.

The kit will replace your restrictive old fashioned air flow meter (barn door) with a modern MAP sensor managed by intake pressures.

The kit is delivered ready to use with a PPT ignition map. We have maps for 3.6 and 3.8 conversions, and either can be pre-installed for you.

Our latest kit now comes with an upgraded ECU and can run a wide band sensor (oxygen sensor).
Our kits include this capability but the sensor needs to be ordered separately.

While developing the upgraded ECU we also changed our intake pipe; this now works with the factory airbox, gives a stock appearance in the engine bay and houses the map sensor and air temp sensor out of sight.

Kit includes:
• Delta 700 ECU
• Direct plug in wiring loom
• Map Sensor and air temp sensor
• Air intake pipe
• 6 Bosch injectors
• Vacuum pipe and T connector
• Support and service by PIE Performance
• Can Bus data connection tool

All our kits are 100% reversible, with no need to drill or alter components, we utilise what already exists

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

964PPT

The product you are viewing cross references to these numbers

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.

Associated components to add include:

• 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.

Patented technology that helps to increase air flow dramatically thus minimising air flow separation and reduces turbulence, resulting in higher volumetric efficiency.
This pristine technology with Knife-edged butterflies has improved inlet airflow and performance significantly. With the individual Throttle blades very close to the inlet valves, the engine and Throttle response are vastly improved. Along with this, we have also found an impressive increase in Horsepower, Torque, Driveability, and an incredible mechanical soundtrack.

Throttle Bodies come fully assembled and ready to bolt directly to the Cylinder Heads, with the following parts included:

• Anodised Aerospace Grade 6082/T6 Billet Aluminium "Shaft-less" Individual Throttle Bodies.
• SLS 3D Printed custom curved Inlets for bonnet clearance around the standard 964/993 models with electronic spoilers.
• Aluminium Ram Pipes & Assembly Tool.
• Throttle Position Sensor (TPS).
• Billet Aluminium Fuel Rails, Including PICO 377cc Fuel Injectors.
• Thermal Insulation Gaskets.
• Throttle Linkage System which connects directly to the existing OEM cable pick-ups.

**please note
Race Mesh Ram Pipe Installation Kit is not included
this is extra product code 102-101-00086-01
you will need an EFI Installation & control kit which is not included

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

102-102-00240-01

The product you are viewing cross references to these numbers

Fuel injection throttle body kit with air horns - Without fuel injectors



Fits:
Porsche 964 Carrera 2 / Carrera 4 - 1989 to 1994

This is a direct replacement kit for converting your Porsche 964 engine to ITBs like the Porsche RSR using airhorns

Kit includes:
6 x Full billet, hard anodised ITB with a stainless steel lever assembly
6 x Thermo barrier gaskets
2 x Fuel rail with mounting hardware
1 x Throttle actuator hard anodised with 2 throttle connection rods manufactured out of stainless steel
1 x Throttle position sensor with mounting hardware
All the needed mounting hardware and fittings.  

ITBs in 2 different sizes:
- Tapered ITB: ∅42mm-∅41,5mm (∅42mm is the butterfly valve size, ∅41,5mm is the intake port diameter)
- Tapered ITB: ∅48mm-∅41,5mm (∅48mm is the butterfly valve size, ∅41,5mm is the intake port diameter) 

All parts of this kit are made out of a single piece 6082 aluminum and are anodized or hard anodized to make them more wear resistant. 

The mounting hardware and other parts are made out of stainless steel, the fuel rails out of 6060 aluminum extrusion profile and come with AN6 ORB connection for the fuel lines. 

The throttle linkages and all mounting hardware are made out of stainless steel and the pivoting points of the throttle linkage are made with ball and socket design for smooth operation. The throttle actuator has a bearing inside for a long lifespan. 

You are also able to use the OEM throttle connection cable but you will need to cut the rigid part at the end of the cable and mount a cable nipple for connecting the cable to the throttle actuator. All aluminum parts of the throttle actuator assembly are manufactured out of 6082 aluminum and are hard anodized.

The levers allow you to adjust and finetune mechanical movement of the ITBs

Fuel injectors, fuel lines, standalone ECU, wire harness are NOT included in the kit but work together 

Fuel injection throttle body kit with plenum adapters - Without fuel injectors



Fits:
Porsche 964 Carrera 2 / Carrera 4 - 1989 to 1994

This is a direct replacement kit for converting your Porsche 964 engine to ITBs using plenum adapers (for a plenum chamber)

Kit includes:
6 x Full billet, hard anodised ITB with a stainless steel lever assembly
6 x Thermo barrier gaskets
2 x Fuel rail with mounting hardware
1 x Throttle actuator hard anodised with 2 throttle connection rods manufactured out of stainless steel
1 x Throttle position sensor with mounting hardware
All the needed mounting hardware and fittings.  

ITBs in 2 different sizes:
- Tapered ITB: ∅42mm-∅41,5mm (∅42mm is the butterfly valve size, ∅41,5mm is the intake port diameter)
- Tapered ITB: ∅48mm-∅41,5mm (∅48mm is the butterfly valve size, ∅41,5mm is the intake port diameter) 

All parts of this kit are made out of a single piece 6082 aluminum and are anodized or hard anodized to make them more wear resistant. 

The mounting hardware and other parts are made out of stainless steel, the fuel rails out of 6060 aluminum extrusion profile and come with AN6 ORB connection for the fuel lines. 

The throttle linkages and all mounting hardware are made out of stainless steel and the pivoting points of the throttle linkage are made with ball and socket design for smooth operation. The throttle actuator has a bearing inside for a long lifespan. 

You are also able to use the OEM throttle connection cable but you will need to cut the rigid part at the end of the cable and mount a cable nipple for connecting the cable to the throttle actuator. All aluminum parts of the throttle actuator assembly are manufactured out of 6082 aluminum and are hard anodized.

The levers allow you to adjust and finetune mechanical movement of the ITBs

Fuel injectors, fuel lines, standalone ECU, wire harness are NOT included in the kit but work together 

Fuel injection throttle body kit - Without fuel injectors



Fits:
Porsche 964 Carrera 2 / Carrera 4 - 1989 to 1994

This is a direct replacement kit for converting your Porsche 964 engine to ITBs 

Kit includes:
6 x Full billet, hard anodised ITB with a stainless steel lever assembly
6 x Thermo barrier gaskets
2 x Fuel rail with mounting hardware
1 x Throttle actuator hard anodised with 2 throttle connection rods manufactured out of stainless steel
1 x Throttle position sensor with mounting hardware
All the needed mounting hardware and fittings.  

ITBs in 2 different sizes:
- Tapered ITB: ∅42mm-∅41,5mm (∅42mm is the butterfly valve size, ∅41,5mm is the intake port diameter)
- Tapered ITB: ∅48mm-∅41,5mm (∅48mm is the butterfly valve size, ∅41,5mm is the intake port diameter) 

All parts of this kit are made out of a single piece 6082 aluminum and are anodized or hard anodized to make them more wear resistant. 

The mounting hardware and other parts are made out of stainless steel, the fuel rails out of 6060 aluminum extrusion profile and come with AN6 ORB connection for the fuel lines. 

The throttle linkages and all mounting hardware are made out of stainless steel and the pivoting points of the throttle linkage are made with ball and socket design for smooth operation. The throttle actuator has a bearing inside for a long lifespan. 

You are also able to use the OEM throttle connection cable but you will need to cut the rigid part at the end of the cable and mount a cable nipple for connecting the cable to the throttle actuator. All aluminum parts of the throttle actuator assembly are manufactured out of 6082 aluminum and are hard anodized.

The levers allow you to adjust and finetune mechanical movement of the ITBs

Fuel injectors, fuel lines, standalone ECU, wire harness are NOT included in the kit but work together 

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       

Rennen MAP Sensor for Rennen by JSR Individual Barrel Throttle Body Upgrades

The Rennen MAP Sensor is a critical engine management component designed specifically for use with Rennen by JSR Individual Barrel Throttle Body (ITB) upgrades. Working alongside the Rennen Vacuum Manifold system, the MAP (Manifold Absolute Pressure) Sensor provides the engine control unit (ECU) with accurate engine load data, allowing precise fuel and ignition calculations throughout the entire rev range.

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

When converting a Porsche engine to Individual Barrel Throttle Bodies, the original intake and airflow characteristics change significantly. Unlike conventional plenum intake systems, individual throttle bodies generate multiple pulsing vacuum signals which must be stabilised and measured correctly. The Rennen MAP Sensor, combined with the Rennen Vacuum Manifold, delivers the accurate load signal required for modern ECU calibration and reliable engine operation.

Whether you are building a fast road Porsche, a track-focused machine or a competition engine, the MAP sensor is one of the most important components in ensuring your ITB conversion performs exactly as intended.

What Does a MAP Sensor Do?

MAP stands for Manifold Absolute Pressure.

The sensor continuously measures the vacuum and pressure levels within the intake system and sends this information to the ECU. The ECU then uses this data to calculate engine load and make real-time adjustments to fuel delivery and ignition timing.

A properly functioning MAP sensor helps provide:

• Accurate engine load measurement
• Precise fuel mapping
• Optimised ignition timing
• Stable idle quality
• Improved throttle response
• Enhanced drivability
• Reliable cold starting
• Consistent engine performance

Without a stable and accurate MAP signal, modern engine management systems cannot correctly determine engine operating conditions.

Why Is a MAP Sensor Essential for ITB Conversions?

Individual Throttle Body systems dramatically improve airflow and throttle response, but they also create unique tuning challenges.

Unlike a traditional intake manifold, each throttle body generates its own vacuum pulse. The Rennen Vacuum Manifold combines these signals into a smooth vacuum source which the MAP sensor can accurately measure.

This allows:

• Standalone ECUs to calculate engine load correctly
• More accurate fuel delivery
• Improved ignition control
• Stable idle operation
• Better low-speed drivability
• Enhanced throttle transitions
• Improved tuning consistency

The result is an ITB-equipped Porsche that not only sounds incredible but also drives smoothly and predictably.

Why Are Barrel ITB Upgrades So Popular?

Rennen by JSR Barrel Throttle Bodies are engineered to maximise airflow while delivering a motorsport-inspired driving experience.

Benefits include:

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

When paired with a properly calibrated ECU and accurate MAP sensor data, the system delivers both performance and drivability.

Why Choose the Rennen MAP Sensor?

Developed specifically for Rennen by JSR ITB applications, this sensor provides the accuracy and reliability required for professional-level engine management calibration.

Benefits include:

• Accurate vacuum and pressure measurement
• Compatible with Rennen Vacuum Manifold systems
• Supports standalone ECU installations
• Essential for ITB engine management
• Improves tuning accuracy
• Enhances drivability
• Suitable for road and motorsport applications
• Reliable long-term performance