For the person who wants the aggressive look of a NASCAR race truck along with all the benefits that a Flowmaster Cat-back exhaust system provides. D.O.S.S. (Dual out same side) systems are the perfect choice. The American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The exhaust system is constructed from 3.00 in. mandrel-bent stainless steel tubing flowing into a Super 40 Series performance muffler for a deep powerful sound, then is finished off with dual 2.50 in. tailpipes and a pair of 3.00 in. polished stainless steel tips. Includes all necessary hardware, instructions and is covered by our Lifetime Limited Warranty. For those who prefer full aluminized stainless steel construction covered by our 3-year Limited Warranty, check out part# 17395. Notes: Fits both 2/4 wheel drive models with extended cab/short bed configuration on a 143.5 in. wheelbase.