Price: $850 - $1095
Product Highlights
- Aluminum intake plenum
- Improves intake air flow
- Replaces factory T plenum
- Gains up to 20 HP
- Gains up to 16 ft lbs torque
- Innovative, patented design
- Easy install, no CEL & perfect fit
+ Product Details, Expectations, and Questions Answered
Porsche Cayman IPD Plenum Upgrade 2.7L, 3.2L, 3.4L, and 3.8L
- All aluminum intake plenum replaces factory plastic T design
- Improves air flow and reduces intake air flow turbulence
- Consistent HP gains throughout rpm range
- Consistent torque gains throughout rpm range
- High flow Y style innovative and patented design
- Competition version recommended
- Easy install, no CEL & perfect fit
- Requires increased size throttle body
The IPD Plenums upgrade for the Porsche Cayman is an innovative “Y” style designed aluminum intake plenum that replaces the factory plastic T style plenum. The IPD design improves performance by channeling intake air to the cylinder banks more efficiently. This design reduces air flow turbulence caused by the factory T style design and increases air flow velocity, resulting in substantial measurable power gains throughout the entire rpm band.
What to Expect from an IPD Plenum on Your Cayman
The IPD Competition Plenum for the Cayman engine delivers impressive horsepower gains for normally aspirated engines. These power and torque gains are mainly felt in the mid-range rpm, however, performance improvements are realized throughout the entire rev range. The added power creates a more linear power curve and helps to minimizing the dip in power typically experienced in the normally aspirated engine.
Your IPD Plenum Questions Answered
Does the IPD Plenum Work on a Porsche Cayman?
Yes. You will feel a difference in performance and power – mainly in the mid range rpm.
Is it Worth the Spend?
Absolutely. This is one of the easiest and most cost effective upgrades you can make to the Cayman.
Will I get a Check Engine Light?
No. The IPD plenum upgrade will not cause a check engine light.
Does it Affect Maintenance Service on the Cayman?
No. Maintenance and service work is unaffected with the IPD plenum as it simply replaces an existing factory part.
Do I need to Make Other Changes?
Yes, we recommend the competition version of the IPD Plenum for the Cayman and this requires the addition of a larger throttle body as shown above. Replacement of the throttle body is straight forward and does not require programming. Optionally, adding a high flow air filter and an ECU tune will further improve the performance of the IPD plenum.
+ Performance Specifications

+ IPD Cayman Model - Pricing
IPD Plenum Cayman Versions – Pricing
There are different versions as shown below based on chassis and engine type fitted to your Cayman. We recommend the competition version of the IPD Plenum upgrade. The competition version is larger in diameter at 82mm versus the factory intake of 74mm size. This requires the use of an additional 82mm throttle body found on the GT3 cars and is designed to deliver extra air volume through the intake.
2006 thru 2008
- 987 Cayman 2.7L or 3.4L – $850.00
+ Throttle Body – $295.00
2009 thru 2012
- 987.2 Cayman 2.9L or 3.4L – $1095
+ Throttle Body – $295.00
2013 thru 2016
- 981 Cayman 2.9L or 3.4L – $1095
+ Throttle Body – $295.00 - 981 Cayman GT4 3.8L – $1095
+ Throttle Body – $295.00
+ Recommended Delivery and Installation Option
Installing the Plenum Yourself
The IPD Plenum can be shipped directly to you and is a relatively straight forward DIY installation.








