Grand Cherokee Catback System 99-04 Grand Cherokee WJ Pypes Performance ExhaustThis Catback exhaust system is designed for those seeking more power and a better sound. This 409 Stainless Steel mandrel bent exhaust system comes with a single exit turndown tailpipe. The chambered style muffler provides a nice deep rumble at idle, but mellows out as you get on it without any drone in the cab. Backed by Pypes Lifetime Warranty, you can expect this to be the last exhaust you ever install on your Cherokee. Details: Single Exit