Flowmaster's Force II DPF-Back exhaust system for the 2011-2014 Ford F-Series Super Duty trucks is perfect for the person looking for mild to moderate sound levels with all of the performance benefits that you would expect from Flowmaster. This bolt-on emissions-legal system for the 6.7L Powerstroke diesel engine features DOS (Dual Out Side) mandrel bent 4.00" stainless steel tailpipes with 5.00" ventilated 304S stainless steel tips. The system connects behind the factory DPF unit and utilizes a single inlet, dual outlet "Power Chamber". It is designed to fit Crew Cab/Short Bed, Ext Cab/Long Bed, and Crew Cab/Long Bed wheelbases only. The exhaust system is covered by Flowmaster's Lifetime Limited Warranty. Designed for an easy fit, this system includes all of the necessary parts and hardware for installation.