IPD Plenum Competition version and Upgrade to 82mm throttle valve for Porsche 997.1 Carrera and Carrera S

All IPD plenums deliver significant power and torque gains, but when combined with larger throttle bodies they perform even better. All IPD “Competition” plenums use the second largest throttle body offered by Porsche. In this case, the Competition Carrera upgrades the factory OE 74mm throttle body with Porsche's 82mm GT3 throttle body. All our competition plenums are designed to perform with cars equipped with high performance exhaust systems. The more extensive the exhaust system (headers, cats and mufflers) the better. Optimizing the air intake and exhaust together creates a balanced performance package that allows the engine to inhale and exhale more air, creating more power and torque.