Porsche 987 Boxster/Cayman IPD Intake Plenum (2005-2008)

The perfectly balanced mid engine Cayman is Germany's canyon carving track meister. Unfortunately, the Cayman was delivered slightly under powered from the factory so as not to threaten the Carrera's throne. The Cayman IPD intake plenum delivers increased performance that puts the Cayman in the ring with the Carrera. IPD 3.4: The IPD Cayman "Competition" Plenum was designed to meet the needs of the most demanding Cayman S enthusiasts. The "Competition" Plenums is even larger and utilizes the 997 GT3 82mm throttle body allowing it to deliver even greater air flow and substantial increases in performance. The "Competition" version is designed to work with both bone stock Caymans but produces even more horsepower gains (20+) with Caymans already equipped with after market "cat back" high flow performance exhaust and other performance mods. IPD 3.4 - 74mm: The 74mm Cayman S Plenum utilizes the factory 74mm throttle body. This version provides impressive power gains throughout the entire po