Process West Intake Manifold Street Version Black Subaru STI 2004-2021 | PWIM002B vendor_Subaru Japan less drive train loss

less drive train loss

Trusted by professional engine builders

A rubber cap is provided to place over the sound symposer housing

The PL-1 enables professional-level data acquisition without expensive standalone systems

Process West Intake Manifold Street Version Black Subaru STI 2004-2021 | PWIM002B vendor_Subaru Japan less drive train lossProduct Fitment: 2004 2021 Subaru STI The Process West Street Billet Intake Manifold is the result of years of development, extensive testing, and multiple prototype refinementsdelivering one of the most capable and proven intake upgrades available for Subaru performance applications. Engineered for both street and high performance builds, this manifold offers exceptional strength, precise airflow design, and consistent power gains across a wide range