"Cobb Exhaust Systems are constructed of high-quality 304 stainless steel tubing. Mandrel bends ensure maximum flow throughout the entire system. An integrated flex section provides a small amount of compliance during installation and reduces stress on components once installed. The triple-chambered muffler with 3"" inlet/outlets keeps the exhaust note crisp and prevents unwanted drone. The three sections are joined together using cast 3"" 2-bolt flanges and multi-layer steel gaskets for a leak-free assembly. Connecting to the factory downpipe assembly is a breeze with an OEM style 2-bolt flange. All Cobb products are covered under a 1-year warranty. Help your truck breathe and get a Cobb Exhaust system today! | Cobb Exhaust System 5F1100"