Part #: SUB - 800510080. This is a genuine Subaru OEM Bolt and Washer designed specifically for your Subaru WRX and STI. Subaru of America offers warranty only for parts installed by a CERTIFIED Subaru Dealership, and the part must match the vehicle VIN. Use your best judgment when installing parts to avoid any issues with warranty claims.

How to use: Just install this bolt and washer in the appropriate place on your Subaru WRX or STI as per your vehicle's manual. It's a straightforward process. Note: Always make sure to install this part at a CERTIFIED Subaru Dealership if you want to get the warranty. The part must match your vehicle's VIN. Maintenance: There's not much special maintenance needed. Just keep it clean and check it regularly for any signs of wear and tear. If you notice any problems, replace it right away.