This is an OEM replacement part by Subaru. This came with your vehicle out of the factory, and is the perfect solution if the original component has become worn or damaged.
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.