The cornerstone of any well engineered diesel performance upgrade plan is a dyno-proven MagnaFlow XL Performance exhaust system. Offered in "Turbo-Back" or "Downpipe-Back," all of our systems are proven to make significant gains in power. All systems include 100% stainless steel, straight through, wide open performance muffler and all the necessary hardware to complete the job like a pro. Backed by a 6-year warranty. Tips sold seperately.