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- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
In fuel injected engines, the throttle body is the part of the air intake system that controls the amount of air flowing into the engine, in response to driver accelerator pedal input in the main. The throttle body is usually located between the air filter box and the intake manifold, and it is usually attached to, or near, the mass airflow sensor.
The largest piece inside the throttle body is the throttle plate, which is a butterfly valve that regulates the airflow. Have a larger diameter throttle body produces more air flow with equals more power. The upgrades should be used in conjunction with the competition plenums.
This is a 82mm Throttle body.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760511601
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
Horsepower improvements range from 30 to 35 and boost response improves considerably making for longer, stronger and of course more pleasurable power curves. The IPD plenum develops horsepower throughout the entire power band, especially where it's needed most, from mid range to top end.
Installation of the 996 Turbo Plenum is very challenging and installation should only be performed by a seasoned and qualified Porsche technician.
The 996 Turbo 68mm version is designed to function with the factory 68mm throttle body that was O.E. on all 996 factory Turbos. The 68mm Plenum delivers similar power as the larger 74mm competition Plenum.
Horsepower gains range from 30 to 35 above the stock power band and initial boost response is improved. The IPD plenum delivers more power and more torque giving the 996 Turbo a stronger mid range and top end.
The 68mm Plenum version is perfect for the Turbo customer looking to improve engine performance on both stock and moderately modified Turbos developing under 700 horsepower.
The IPD 996 Turbo Plenum will truly transform the already impressive Turbo performance. The Plenum should be the first performance upgrade installed on any Turbo. They deliver great power gains on all Turbos whether they are bone stock or highly modified.
996 Turbo/GT2 Plenum: HP Gains 30-40 / Torque Gains 40-45. To be used with factory 68mm Thottle Body
Fits:
Porsche 996 Turbo/S/X50/ GT2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96268
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
Horsepower improvements range from 30 to 35 and boost response improves considerably making for longer, stronger and of course more pleasurable power curves. The IPD plenum develops horsepower throughout the entire power band, especially where it's needed most, from mid range to top end.
Installation of the 996 Turbo Plenum is very challenging and installation should only be performed by a seasoned and qualified Porsche technician.
The 996 Turbo 74mm "Competition" Plenum is designed to function with more seriously modified Turbos developing over 600+ horsepower. Although this 74mm application has been used with great success on a variety of Turbos ranging from mildly modified to 1000+ HP.
This application requires the larger 74mm Porsche throttle body (additional purchase required) and comes with additional hardware to complete the kit. This "Competition Turbo" Plenum will help modified 996 Turbos realize maximum performance.
The increased air flow and air speed develop by the larger Plenum is designed to work with larger turbos, intercoolers, intake piping, high flow Y Pipes and more aggressive software.
Horsepower gains start around 35 hp and deliver max power slightly higher in the rev range creating better top end performance without the drop in power experienced with the factory air distributor.
996 Turbo Competition Plenum: HP Gains 24 / Torque Gains 26. Requires upgrading factory 68 mm TB with 996 Turbo 74 mm Thottle Body
Fits:
Porsche 996 Turbo/S/X50/ GT2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96274
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
74mm Throttle Body
Restore accurate airflow and throttle response with this OE
Match 74mm Throttle Body. The electronic throttle body controls the amount of air
entering the engine according to accelerator input. Correct operation is
essential for smooth acceleration, stable idle and consistent engine
performance.
Fits:
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Diagram Ref No 1
What Does the Throttle Body Do?
The throttle body contains a circular butterfly valve that opens and closes to regulate airflow into the engine.
When the accelerator is pressed, the engine management system electronically controls the throttle body, opening the valve to increase airflow and closing it when less engine power is required.
A correctly functioning throttle body helps:
- Control engine intake airflow
- Maintain a smooth, stable idle
- Provide responsive acceleration
- Maintain consistent engine performance
- Support accurate engine management
Why Do Throttle Bodies Fail?
Throttle bodies are exposed to heat, vibration and contamination throughout their working life. Oil vapour and carbon deposits can accumulate around the throttle plate, while the electronic actuator and internal position sensors can deteriorate with age.
Common causes include:
- Carbon and oil deposits
- Electronic actuator wear
- Throttle position sensor faults
- Electrical motor failure
- Damaged wiring or connectors
- Heat and vibration
- General age-related deterioration
A contaminated throttle body may sometimes be cleaned successfully, providing its electronic components remain serviceable.
When Should the Throttle Body Be Replaced?
Replacement should be considered if:
- Idle becomes unstable or fluctuates
- Throttle response becomes slow or inconsistent
- The engine hesitates during acceleration
- The vehicle enters limp-home mode
- Throttle-related fault codes are stored
- Cleaning does not restore correct operation
- Diagnostic testing identifies an internal fault
- The throttle plate sticks or fails to operate correctly
Similar symptoms can be caused by intake leaks, wiring or other engine management components, so correct diagnosis is recommended before replacement.
Electronic throttle bodies play an important role in Porsche engine management and intake systems.
As Porsche models age, contamination, actuator wear and electronic faults can lead to poor throttle response, unstable idle, hesitation and engine management warnings.
When diagnosing a Porsche throttle body fault, the intake pipework, electrical connections and associated engine management components should also be checked before replacement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99760511502
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