The aFe Atlas 4-inch aluminized cat-back exhaust for 2011-2014 Ford F-150 3.5L EcoBoost is a mandrel-bent system that increases exhaust flow by smoothing bends and enlarging diameter. It installs using factory mounting locations with OE-style bayonet hangers and high-quality band clamps for a leak-resistant seal, and comes complete with a free-flow muffler and a black 304 stainless tip.
aFe Atlas Exhaust 4in Aluminized Cat-Back w/ 304 SS Black Tip 11-13 Ford F-150 EcoBoost V6 3.5L (tt)