Porsche Competition Intake Plenum - IPD 87174-3.2

All Competition Plenums include the throttle body gasket and new throttle body bolts.

The revolutionary and patented design of the IPD Porsche Plenums improve intake air flow by replacing the factory plastic "T" style design with a more efficient, cast aluminum "Y" design. This innovative “Y” diversion area of the IPD Plenums split and channel intake air flow reducing air flow turbulence and increasing air flow velocity. This superior and proven design ultimately results in considerable power gains throughout both horsepower and torque curves. Performance is also enhanced with our uniquely dimpled interior surfaces which create improved boundary layers further optimizing intake air flow characteristics.

Porsche introduced the 987 S Boxster with the 3.2 liter engine from the 986 Boxster S. This Plenum version provides impressive power gains throughout the entire power band, especially in the midrange where we enjoy it most.

The 74mm Boxster S IPD Plenum and upgraded 74mm (from 68mm) throttle body package is recommended for Boxster S 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 S 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 S modification on the market and will further compliment other mods such as exhaust, software and beyond.