This stainless steel cat-back exhaust system fits 2003-2012 Dodge Ram 2500/3500 with the 5.7L Hemi engine, and also fits 2005-2008 Dodge Ram 1500 MegaCab with 5.7L engine. As an American Thunder system, it will provide improved performance and fuel economy while producing a moderate tone inside and outside the truck. Constructed from 16-gauge mandrel-bent 3.00 in. stainless steel tubing flowing into a 50 Series™ HD performance muffler. The dual 2.50 in. mandrel-bent tailpipes use the factory hanger locations for an easy installation and the system is finished off with a pair of 3.00 in. polished 304 stainless steel tips. The system comes with two sets of tailpipe exits giving you the option of either straight-out the back under the bumper, or out the sides behind the rear wheels, which is ideal for towing applications. Easy to follow instructions and all necessary hardware is provided with the system and its covered by our Lifetime Limited Warranty.