Down Pipe - 3 in Diameter - Steel - Black Ceramic - 6.6 L - GM Duramax - GM Fullsize Truck 2001-04 - Each

Exhaust System - American Thunder - Cat-Back - 3 in Diameter - Single Side Exit - 4 in Polished Tips - Steel - Aluminized - GM Fullsize Truck 2001-06 - Kit

Exhaust System - American Thunder - Cat-Back - 3 in Diameter - Dual Side Exit - 4 in Polished Tips - Steel - Aluminized - GM Fullsize SUV 2001-06 - Kit

Elevate your GM truck's performance with the 01-07 GM 2500/3500 EC/CC 4in Down Pipe by MBRP, INC (Part # S6004PLM). Designed for optimum functionality, this exhaust system from the PLM Series boasts a 4-inch diameter and is constructed from durable steel...

Collector Reducer - 2.5 in Inlet to 2.25 in OD Outlet - 3-Bolt Flange - O2 Sensor Bung / Gasket - Steel - Black Paint - Each

Headers - Shorty - 1.625 in Primary - Stock Collector Flange - Gaskets / Hardware Included - Stainless - Natural - Small Block Chevy - GM Fullsize SUV / Truck 2002-12 - Pair