Holley Performance Products is proud to announce additions to the Hooker BlackHeart exhaust line. Hooker BlackHeart exhaust components are constructed of lightweight 18-gauge 304 stainless steel to maximize strength and durability. They feature quality welds throughout for strength, longevity, and good looks. The Mustang cat-back and axle-back exhausts are available with either a straight-through muffler or no muffler design that exits into a variety of dual wall polished stainless steel or powdercoated tips that are laser-etched with the Hooker logo. Tube geometry is optimized for maximum clearance and retains the use of factory mounting points for a hassle-free installation. Ford Mustang -2013-'14 Mustang GT GT500-style Axle-Back Exhaust -2015 Ecoboost Mustang Exhaust Products -2011-'14 V6 Mustang Axle-Back Exhaust (With muffler, Without muffler) -2011-'14 V6 Mustang Cat-Back Exhaust (With muffler, Without muffler) Parts/Accessories Hooker V-Band Clamps (2.5", 3.0")