Subaru OEM Rear Knuckle Left Subaru WRX / STI 2015-2021 | 28411VA030 Mud Flaps Programmable boost cut based on

Programmable boost cut based on AFR safety thresholds

The Street Series Mounts start with 75A durometer bushings

this unit delivers a strong balance of performance and protection

keeping the chassis flatter through corners and improving rear-end stability and traction under acceleration

Subaru OEM Rear Knuckle Left Subaru WRX / STI 2015-2021 | 28411VA030 Mud Flaps Programmable boost cut based onProduct Fitment: 2015 2021 WRX 2015 2021 STI The steering knuckle in your Subaru may need to be replaced if it has become damaged or rusty. 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 a warranty claim to come through if it explodes! Please use your best