The 2.7L Cayman Plenum also utilizes the factory OE 74mm throttle body. This version provides power gains throughout the entire power band as well, especially in the midrange where it's most needed and most enjoyed.
 
This particular Cayman Plenum application is recommended for Cayman enthusiasts looking for considerable performance gains without exceeding certain performance thresholds.
 
The IPD Cayman Plenum will provides the most power gains of any engine upgrade available and will truly transform your Cayman driving experience. The Cayman IPD Plenum is the best Cayman modification on the market and will further compliment other mods such as exhaust, software and beyond.