Subaru OEM Stock Size Piston Ring WRX EJ255 & STi EJ257

Part #: SUB-12033ab340. This is a genuine Subaru OEM stock size piston ring set. It is specifically designed to fit the 2.5 WRX EJ255 and 2.5 STi EJ257 engines. Subaru of America offers a warranty, but only for parts installed on a car with a matching VIN and installed by a CERTIFIED Subaru Dealership. Make sure to use your best judgment when installing these parts.

Using these piston rings is straightforward. First, ensure your engine is the 2.5 WRX EJ255 or 2.5 STi EJ257 type. When installing, it's very important to have a certified Subaru dealership do the job if you want the warranty to apply. Also, check that the part's VIN matches your vehicle's VIN. For maintenance, regularly check the engine's performance. If you notice any strange noises or a drop in power, it might be time to inspect the piston rings. Always follow the vehicle's regular maintenance schedule to keep these rings and your engine in good shape.