Using this Remark axle - back exhaust is easy. First, make sure your vehicle is a 2022 - 2025 Subaru WRX. It directly bolts onto the OEM or Remark mid Y - pipe, so you don't need to do any complex modifications. Just follow the standard installation process for exhaust systems. When it comes to maintenance, keep an eye on the exhaust for any signs of damage or rust. Since it's made of stainless steel, it's quite durable, but occasional cleaning can help keep it looking good. Avoid using abrasive cleaners as they may scratch the surface. If you notice any strange noises or a change in performance, it might be a good idea to have it checked by a professional. And remember, for the best performance, you can pair it with a Remark mid pipe.