Using this Sinister Diesel AR - 15 exhaust tip is easy. First, gather basic hand tools. Then, find the right spot on your diesel truck's exhaust system to install it. The tip is designed to fit most systems, with a 4 - inch inlet and 6 - inch outlet. Just attach it and you're good to go in minutes. As for maintenance, since it's made of stainless steel with powder coating, it's quite durable. But it's a good idea to clean it regularly with a mild soap and water solution to keep it looking great. Avoid using abrasive cleaners as they may damage the coating. And remember, it comes with a 1 - year warranty, so if you have any issues, reach out to the seller.