aFe POWER introduces an all new Rebel Series dual middle-side exit exhaust system for 2011-2014 Ford F150 EcoBoost with V6-3.5L (tt) engine. This Rebel Series cat-back is designed with dual polished exhaust tips that exit in front of the rear passenger tire for a unique, aggressive look. The tips come with a unique aFe Power logo laser etched on the side and constructed from stainless steel for durability. The exhaust system is constructed from 3" into dual 2-1/2" MIG-welded, mandrel bent stainless steel tubing for maximum flow, increased horsepower and torque. In testing, this cat-back exhaust system added an astounding +15 horsepower and +18 lbs. x ft. of torque as verified by our in house dyno. This kit uses an 18" free-flowing muffler to absorb high pitch tones producing a powerful sound, virtually eliminating drone. The performance cat-back exhaust system includes all necessary hardware and clamps for a hassle-free install, with no cutting required making it a true bolt on system.