Boomba Racing 75MM Throttle Body (Natural Aluminum) - 2002-2005 Subaru WRX prop65_reproductive and they deserve quality replacement

and they deserve quality replacement components

Factory O2 sensor bung positions retained

then you will need to properly ground the ECU from another source

This clamp can also be used to secure an external Bosch 0 580 254 044 fuel pump (sold separately)

Boomba Racing 75MM Throttle Body (Natural Aluminum) - 2002-2005 Subaru WRX prop65_reproductive and they deserve quality replacementWRX STI 75 MM Throttle Body Upgrade Designed to work seamlessly with the factory idle control and TPS, this throttle body is built for 2004 and earlier WRX and STI models using Drive by Cable systems. Crafted from CNC machined billet aluminum, its enlarged 75 mm bore increases throttle cross sectional area by nearly 56% over stock, delivering noticeable horsepower gains and sharper engine responseeven with factory intake pipes and turbo. The kit