NOT FOR SALE IN CALIFORNIA
MBRP 3" Turn Down Series Down-Pipe Back Kit for GM Duramax 6.6L LB7
MBRP designs its products with the phrase, "The best system starts with the best materials" in mind. This Turndown Series Down-Pipe Back Kit is made from full 16 gauge mandrel bent tubing. Plus, the MBRP Turn Down Series exhausts have a Lifetime Warranty.
Improving the Performance of Your 6.6L LB7 GM Duramax Engine
Upgrading your diesel truck's stock exhaust to an MBRP performance exhaust can add up to 18 horsepower with 28 ft/lb more torque. The 3" mandrel bent tubing used for this Down-Pipe Back Kit opens up the flow path allowing your engine to remove the hot air fast. The spiral-louvered high flow muffler was specifically designed to give your LB7 6.6L Duramax trucks a rich, mellow sound.
Built for Easy Installation
Using all the factory mounts and OEM hangers, the Turn Down Series Down-Pipe Back Kit is a bolt-on exhaust unit. The estimated project time is 1.5-2 hours and that includes removing your stock exhaust. This kit is designed to fit any 2001, 2002, 2003, and 2004 GMC Sierra or Chevrolet Silverado 2500 or 3500 with a 6.6L LB7 GM Duramax engine. MBRP includes all the clamps and parts you need for easy installation whether your diesel truck has a Crew Cab, Extended Cab, short or long bed.