Using this exhaust system is easy. Just follow the included installation guide to bolt it on to your 2022 - 2025 Subaru WRX. When installing, make sure all the bolts are tightened properly to avoid any rattling noises. For daily use, enjoy the rich sound it produces during your commutes and weekend drives. As for maintenance, regularly check the exhaust for any signs of damage, like rust or loose parts. Clean the burnt stainless steel tips with a mild stainless - steel cleaner to keep them looking great. If you notice any abnormal noises or performance issues, it's a good idea to have it inspected by a professional.