Subaru OEM Standard A Piston Subaru WRX / STI EJ257 Engine 2004-2021 vendor_Skunk2 Reduces rear end float under

Reduces rear end float under acceleration

Activates under acceleration and not on deceleration

MegaPower Exhaust systems offer more performance

The available colors of Titanium

Subaru OEM Standard A Piston Subaru WRX / STI EJ257 Engine 2004-2021 vendor_Skunk2 Reduces rear end float underPart #: SUB 12006AC390 Subaru genuine OEM Standard A Piston Subaru EJ257 STI Price per each. Warranty Disclaimer: Subaru of America will only warranty parts installed on a car that has a matching VIN to that part. Warranty Disclaimer: Subaru of America will only warranty parts installed by a CERTIFIED Subaru Dealership. The part being installed must also match the vehicle VIN. IE If you install an STi block in a WRX at your friends shop, do not expect