If one is looking to add a little style to one's Truck or SUV and want to keep the exhaust from affecting the tow trailer, this Dual Cat back Exhaust System is perfect, exiting behind the rear tire for a look that sets your vehicle apart on the street or in the dirt. Hassle free, bolt-on installation with professional looking results. No welding required. Backed by a Lifetime Limited Warranty. Gibson dual sport exhaust offers a powerful authoritative deep exhaust tone with no annoying noise inside the cab. Dyno tested to assure increased horsepower and produce more torque. Average horsepower gains are 18-20 and 15-20 lb-ft of increase torque.