Process West Intake Manifold MY99-21 Stock Throttle Position Suit Bosch 74mm DBW Throttle Body | PWIM009B Vehicle Model_TSX at both low throttle and

at both low throttle and engine load conditions

oil particles are carried in that air which causes your intake system and intake valves to become coated in oil which leads to carbon buildup on the valves and reduced octane levels

Designed for Race Applications

By reducing the weight by more than 75% this will give your shifter a direct feel

Note: This part is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles

Process West Intake Manifold MY99-21 Stock Throttle Position Suit Bosch 74mm DBW Throttle Body | PWIM009B Vehicle Model_TSX at both low throttle andFitment Information: Subaru WRX 2002 2014 Subaru STI 2004 2021 Intake manifold Reverse orientation to suit Bosch drive by wire 74mm throttle body. Fits 1999 to current EJ engines. Requires Bosch part number 0 280 750 473. Not included. Full Billet Aluminium Plenum with Billet Bell Mouth ended Runners CNC mandrel bent tube components Suited to setups not requiring Factory AC. The Process West range billet manifolds is a no holds barred manifestation of