MBRP S7119AL 3" Aluminized Steel Dual Rear Exit Street Profile Cat-Back Exh for 2015-2016 Dodge Charger / Chrysler 300 5.7L HEMIOur high flow performance exhaust systems maximize exhaust flow so your engine keeps its cool with lower exhaust temperatures. Your reward will be greater fuel efficiency; more torque; more horsepower; and last but not least a sound that is pure MBRP. Cat Back Performance Exhaust System; 3. 0 in.; Aluminized Steel; Dual Rear; Street Profile; Uses Factory Bezels.