I've had two of there turbo back exhaust kits for two different powerstroke diesel trucks and both sound great and fit and finish was great. My first kit lasted 7 years I owed the truck and looked just as good when I sold the truck as when I Installed it. The new truck has a 5" turbo back and it only cost me 400 shipped. It's not stainless but where I live I don't need it. Very reasonable on price and quality is great.