Intake Plenum – 74mm For Porsche 997.1 Carrera S 3.8L (2005-2008) Models.

Upgrade your Porsche 997.1 Carrera S with the IPD 74mm Plenum for a significant boost in performance. This specially designed plenum provides impressive power increases across the entire power band, elevating the driving experience with improved throttle response and a more linear power delivery.

The unique “Y” design of the 3.8L IPD Plenum allows for smoother, more efficient airflow. You can expect to experience gains of 28 horsepower and 26 foot-pounds of torque in the midrange, with a noticeable increase of 11 to 12 horsepower at the peak.

Full power improvements will be realized once the factory DME completes its necessary “adaptation” requirements, which occurs after a series of hard pulls on the dyno or full-throttle runs. The IPD Plenum is a direct bolt-on replacement and installation is relatively straightforward for mechanically inclined DIY customers; however, IPD strongly recommends that all plenum installations be performed by a trained and qualified Porsche technician.

Key Features:

• Performance Gains:

  • 28 horsepower and 26 ft-lbs of torque in the midrange.

  • 1112 horsepower at the peak.

• Design: The “Y” design provides a more linear power delivery and improved throttle response.

• Compatibility: A direct bolt-on replacement for the factory intake.

• Installation: Can be installed by a mechanically inclined customer, but professional installation is strongly recommended by IPD.

• Adaptation: Power improvements are fully realized after factory DME adaptation