This Flo - Pro exhaust system is a perfect fit for 2015.5 - 2016 GM vehicles with LML Duramax engines and a 3 - Bolt Flange at the downpipe. Designed to fit all wheelbase and cab configurations (unless specified otherwise), it's a game - changer for your Duramax. Increase your engine's power and get that aggressive sound you've always wanted. Just like other Flo - Pro exhaust kits, it comes with all necessary clamps, pre - weld contour bent hangers, and stronger flanges, making installation a breeze. It mounts easily on OEM hangers and connects with lap joints, allowing for future modifications. With the Flo Pro 671 5" Downpipe Back Exhaust System, you'll enjoy a great - sounding exhaust, enhanced performance, better flow, and lower EGTs. Key features include a 5" downpipe back single exhaust system, EGT reduction, a built - in muffler, aluminized and stainless - steel construction, single - side exit, OEM 3 - Bolt Flange, and easy installation on OE hangers. Note that these kits only fit models with the OEM style 3 - bolt flange off the turbo direct pipe.

Using this exhaust system is quite straightforward. First, make sure your vehicle is a 2015.5 - 2016 GM with an LML Duramax engine and has the OEM style 3 - bolt flange off the turbo direct pipe. The system comes with all the required parts like clamps and hangers. Just mount it on the OEM hangers and connect it using the lap joints. During installation, take your time to ensure all connections are secure. As for maintenance, regularly check the clamps and hangers for any signs of looseness. You can clean the exhaust system with a mild detergent and water to keep it looking good. Avoid using harsh chemicals as they may damage the aluminized and stainless - steel materials. If you plan to modify your vehicle in the future, this system's design allows for easy changes. Remember, this exhaust is specifically designed for the mentioned vehicle models, so don't try to fit it on other vehicles without proper modifications.