Subaru OEM Stock Size Piston Ring WRX EJ255 & STi EJ257

Part #: SUB-12033ab340. This is a Subaru OEM stock size piston ring set. It's a perfect fit for 2.5 WRX EJ255 and 2.5 STi EJ257 models. Warranty note: Subaru of America only warranties parts installed on a car with a matching VIN by a CERTIFIED Subaru Dealership. So, make smart installation choices to ensure warranty coverage.

Using these piston rings is straightforward. Just have them installed by a certified Subaru dealership. This not only ensures proper fitting but also keeps your warranty valid. When installing, make sure the part's VIN matches your car's. As for maintenance, follow Subaru's regular maintenance schedule. Check the piston rings during routine inspections to spot any signs of wear or damage early. If you have any concerns during use, reach out to a Subaru expert for advice.