Process West Intake Manifold Track Version Reverse Throttle Position Subaru STI 2004-2021 | PWIM001 Wheel Offset_48mm causing the unused charge air

causing the unused charge air to vent to atmosphere (VTA) giving off the well known

With certain race classes banning the use of a full metal tow hooks extending beyond the bumper

and spirited performance use

ARP head studs for your Subaru WRX and STI ARP uses a premium grade 8740 chrome moly that is rated far superior to "aircraft" quality

3 Bar / 19 psi

Process West Intake Manifold Track Version Reverse Throttle Position Subaru STI 2004-2021 | PWIM001 Wheel Offset_48mm causing the unused charge airProduct Fitment: 2004 2021 Subaru STI When a standard throttle body location wont work for your setup, the Process West Track Billet Intake Manifold in DBW reverse orientation provides a high performance solution without compromise. Designed for demanding engine bay layouts, this configuration delivers the same proven power and airflow benefits in a more adaptable form. Built for serious performance applications, this manifold is ideal for track,