MBRP 2001-2005 Chev/GMC 2500/3500 Duramax EC/CC Cat Back Single Side

Our 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. Installer Series Cat Back Exhaust System; 4 in.; Incl. Slip Joint/Extension Pipes/Muffler/Tailpipe/Hardware/4.0 in. OD Tip; Single Side Exit; Aluminized;