IPD Plenum 74mm For Porsche 996 X51 3.6L (2000-2004) Models.

The IPD Plenum for the Porsche 996 Carrera 3.6L X51 is engineered to enhance the performance of the factory X51 engine package, which increased horsepower from 316 to 345. Utilizing all existing factory hardware and the OE 74mm throttle body, the IPD “Y” style Plenum improves airflow efficiency, resulting in an additional 24 wheel horsepower and 22 lb-ft of torque.

Designed as a direct bolt-on replacement, the X51 Plenum delivers stronger midrange and top-end performance while maintaining smooth and linear power delivery. Installation is straightforward for mechanically inclined enthusiasts, though IPD recommends it be performed by a qualified Porsche technician to ensure optimal performance and reliability.