Hooker continues to push the boundaries of performance with the BlackHeart line of exhaust products. We are proud to offer these single and dual cat-back exhaust systems for the 2004-15 For Nissan Titan trucks. These cat-back systems are engineered to offer both premium fitment and maximum performance from your 5.6L engine. Features: Max dyno gains of +14.06 HP & +15.0 LB.FT. torque Dual rear exit constructed from 2.5 lightweight, 18-gauge, mandrel bent, stainless steel maximizing strength and durability Features a Stainless steel, high-flow muffler for optimum performance and no drone 4 diameter, angle-cut, rolled-edge, resonated tip with laser etched Hooker BlackHeart logo adds maximum styling to your ride 100% quality hand-welded construction for strength, longevity and good looks Utilizes OEM mounting points for factory-like fitment Tube geometry designed for maximum clearance and hassle-free installation All hardware included Manufacturer’s limited lifetime warranty Fits all king cab & crew cab SWB 139.8 WB trucks NOTE: Dual Exit Exhaust designed to fit with the OE hidden hitch