IPD Plenum 74mm For Porsche Cayman 987 S 3.4L (2006-2008) Models.

The IPD 74mm Plenum for the Porsche Cayman S is a direct upgrade that utilizes the factory 74mm throttle body to deliver noticeable performance gains across the entire power band, with the most significant improvements in the midrange.

This plenum provides up to 14 wheel horsepower and 12 lb-ft of torque, with peak gains around 5,600 RPM, while maintaining smooth and consistent power delivery throughout the rev range. Designed for enthusiasts seeking enhanced performance without extreme modifications, the IPD Cayman S Plenum complements other upgrades such as exhaust and software, transforming the driving experience and providing one of the most effective performance improvements available for the Cayman.