Using this Noble JDM S209 front and rear fender kit is a breeze. First, gather all the parts included in the kit, which comes with the necessary installation hardware. You can start by positioning the fenders on your 2018 - 2021 WRX or STI. There's an option for non - permanent installation, so you can test the look before making it a permanent addition. If you need extra clearance for your wheels or tires, you can choose to cut the fenders, but be careful when doing so.
As for maintenance, since it has an unpainted black finish, you can use common automotive cleaners to keep it clean. Avoid using abrasive materials that might scratch the surface. If you plan to paint the fenders in the future, make sure to prep the surface properly according to standard automotive painting procedures. And remember, if you ever decide to return your vehicle to its original state, the non - permanent installation feature makes it easy to remove the fenders.