Using your Borla S - type cat back exhaust is a breeze. First, follow the included installation instructions to directly bolt it onto your 2022 - 2025 Subaru WRX. Once installed, you're ready to hit the road and enjoy the enhanced performance and aggressive sound. When it comes to maintenance, regularly check the exhaust for any signs of damage or loose connections. Since it's made of 304 stainless steel, it's quite durable, but a simple cleaning with a mild soap and water solution can keep it looking its best. Also, avoid driving through deep water as it could potentially damage the exhaust components. If you notice any unusual noises or a decrease in performance, it's a good idea to have it checked by a professional.