MBRP 2015 Ford Mustang GT 5.0 3in Cat Back Dual Split Rear Race Version 4.5in Tips - T409Our 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. XP Series Cat Back Exhaust System; 3 in.; Incl. H Pipe Mufflers Hardware 4. 5 in. Tips; Dual Split Rear Exit; T409 Stainless Steel; Race Version; 4. 5" OD tip included