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- Porsche Boxster 981 2.7L 2012-16
- Porsche Cayman 2.7L 981 2013-16
IPD aluminium intake plenum kit for Porsche 981 Cayman and Boxster 2.7L DFI models. This Competition kit combines the plenum with an included 82mm throttle body and a matching silicone intake hose.
Fits:
- Porsche Boxster 981 2.7L 2012-16
-
Porsche Cayman 2.7L 981 2013-16
What This Product Does
The intake plenum forms the air-distribution connection between the throttle assembly and the engine's intake runners. This Porsche 981 2.7L DFI intake plenum kit replaces the original distributor as part of a planned induction modification, pairing an aluminium body with the larger throttle assembly.
Functions
- Routes incoming air towards the intake runners.
- Connects the intake system to the 82mm throttle assembly.
- Provides a matching silicone hose connection for the revised installation.
Technical Details
- Aluminium plenum construction with a dimpled internal surface.
- Competition configuration using an 82mm throttle body in place of the original 74mm unit.
- The supplied kit includes the 82mm throttle body.
- Custom silicone intake hose matched to the larger throttle connection.
- The supplied technical context covers 2.7ltr, engine-specific suitability must be checked.
Symptoms of Fault
Intake leaks or damaged connections can accompany an irregular idle, hesitation or inconsistent engine response. These symptoms do not establish that the plenum is faulty: inspect the hoses, seals and associated intake connections before selecting replacement components.
Why Replacement Matters
A Porsche 981 Cayman or Boxster aluminium plenum kit should be selected as part of a coordinated intake installation. Matching the plenum, throttle assembly and hose connections is important; changing induction hardware does not remedy an underlying mechanical fault.
FAQs
Is an 82mm throttle body included?
Yes. The supplied kit specification includes this component.
What needs checking during installation?
Inspect seals, hose connections, vacuum fittings and clearance around the assembly. Confirm any additional consumables required for the work.
Does replacing the plenum resolve rough running?
Not necessarily. Establish whether the cause is an intake leak, ignition issue or another mechanical fault before replacing parts.
Check fitment for your specific vehicle (model, year, engine) before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
IPDKIT81482-27
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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
The 986 Boxster marked Porsche's return to a purpose built 2 seat roadster since the famed 550 Spyder. This liberating open cockpit platform was instrumental in saving Porsche from financial uncertainty and was Porsche highest volume seller from 1997 to 2003, until the Cayenne entered the Porsche line up.
The perfectly balanced mid engine 986 Boxster was designed to deliver driving excitement on sinuous back country roads while enabling the driver (and passenger) to literally take in the sights, sun and smells of the surrounding environment and listening to the intoxicating mechanical sounds of a flat 6 Boxer engine tones.
The Boxster experience can only be further heightened by adding improved performance. The IPD Plenums provide impressive the power gains throughout the entire power band making for an even more visceral Porsche driving experience.
All 986 Boxster IPD Plenum applications are designed to utilize the larger 74mm Porsche throttle body. The combination of the patented "Y" design of the IPD Plenum combined with a larger TB allow for improved air flow and intake air speed. The IPD Plenum is the absolute single best performance mod you can install on a Porsche Boxster, providing impressive power gains throughout the entire power band, especially in the midrange where we enjoy it most.
Installation of the 986 Boxster IPD Plenums comes with additional hardware and is relatively straight forward although IPD strongly recommend installation be performed by a trained Porsche technician.
The 74mm Boxster S IPD Plenum and upgraded 74mm (from 68mm) throttle body package is recommended for Boxster enthusiasts looking for considerable performance gains. Performance gains can be felt throughout the entire power band making the Boxster driving experience even more visceral.
The IPD Plenum will provide the most impressive power gains of any engine upgrade available and will truly transform your Boxster driving experience. The 74mm IPD Plenum is the best Boxster modification on the market and will further compliment other mods such as exhaust, software and beyond.
986 Boxster Competition 00-04 Plenum: TBA
Requires upgrading factory 68mm Thottle Body with 74mm Thottle Body
Fits:
Porsche 986 Boxster S 3.2L 2000-04
Porsche 986 Boxster 2.7L 2000-04
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
86174
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
The 986 Boxster marked Porsche's return to a purpose built 2 seat roadster since the famed 550 Spyder. This liberating open cockpit platform was instrumental in saving Porsche from financial uncertainty and was Porsche highest volume seller from 1997 to 2003, until the Cayenne entered the Porsche line up.
The perfectly balanced mid engine 986 Boxster was designed to deliver driving excitement on sinuous back country roads while enabling the driver (and passenger) to literally take in the sights, sun and smells of the surrounding environment and listening to the intoxicating mechanical sounds of a flat 6 Boxer engine tones.
The Boxster experience can only be further heightened by adding improved performance. The IPD Plenums provide impressive the power gains throughout the entire power band making for an even more visceral Porsche driving experience.
All 986 Boxster IPD Plenum applications are designed to utilize the larger 74mm Porsche throttle body. The combination of the patented "Y" design of the IPD Plenum combined with a larger TB allow for improved air flow and intake air speed. The IPD Plenum is the absolute single best performance mod you can install on a Porsche Boxster, providing impressive power gains throughout the entire power band, especially in the midrange where we enjoy it most.
Installation of the 986 Boxster IPD Plenums comes with additional hardware and is relatively straight forward although IPD strongly recommend installation be performed by a trained Porsche technician.
The 74mm Boxster IPD Plenum and upgraded 74mm (from 68mm) throttle body package is recommended for Boxster enthusiasts looking for considerable performance gains. Performance gains can be felt throughout the entire power band making the Boxster driving experience even more visceral.
The IPD Boxster Plenum will provide the most impressive power gains of any engine upgrade available and will truly transform your Boxster driving experience. The 74mm IPD Plenum is the best Boxster modification on the market and will further compliment other mods such as exhaust, software and beyond.
Fits:
Porsche 986 Boxster S 3.2L 2000-04
Porsche 986 Boxster 2.7L 2000-04
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
IPDKIT98632
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- 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
The product you are viewing cross references to these numbers