GMC/Chevy, 2001-2006, 8.1L, Weld/On - Truck Cat-Back Dual Exhaust Kits

This MPI Exhaust Tech. Cat-back for 2001-2006 Chevy 2500, 3500 Gives you the choice of Sound options to fit your style without that drone! While still gaining those huge MPI Performance Numbers, This Weld-on emissions-legal system features all mandrel-bent built right here in Montana. This kit Fits all wheelbases 2500, and 3500 with all parts necessary for that home installer. Dyno Results: Dyno gains 20 hp and 16 lb-ft at the rear wheels over stock @ 4,200 RPM, Most Vehicle gain 2 - 4 MPG, these numbers are with zero tuning, vs. stock truck. Muffler Options : MPI Turbo series mufflers will have a nice, mellow sound. MPI Performance series mufflers are going to be more aggressively sounding Quality: MPI Exhaust Kits use the highest quality 14 Ga. Tubing: this extra-thick tubing is proven to last in harsh environments, including road salts and rough gravel roads. Perfectly protected with the best anti-rust coating mankind can make. Backed with our 3-Year Warranty, we stand behind what we build! Note: All our kits are produced for the longest wheelbase available for this truck. You may need to trim your kit, and the complete instructions provide all the necessary measurements to make it a perfect fit. Weld-together systems installed properly are proven to last! Patented Exhaust Pulse Chamber - Pat. 11713700 Includes all necessary hardware for an at-home installation Uses factory hanger locations for easy installation No In-Cab Droning, Guaranteed 2-4 MPG Improvement Direct Fitment - Weld Together Clears the Factory Spare Tire Instructions Packet G551 & G552