Subaru OEM Knuckle - Front Left 06-07 STI | 28313FE071 vendor_Red Line Oil The Serrated/Swirl combination design creates

The Serrated/Swirl combination design creates intake turbulence in the combustion chamber which breaks up the fuel creating a more complete combustion cycle increasing horsepower

Part #: 512-885-1247GM

maximizes engine efficiency

Whether you're tackling spirited backroad drives

Subaru OEM Knuckle - Front Left 06-07 STI | 28313FE071 vendor_Red Line Oil The Serrated/Swirl combination design createsProduct Fitment: 2006 2007 Subaru STI 28313FE071 Front Spindle Knuckle, Left is Part Code 28313A in the diagram 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 judgement.