Downpipes

For 2006-2007 Chevy/GMC With 6.6L Duramax LBZ Diesel Engine

Replace or upgrade the downpipe in the exhaust system of your 2006-2007 Chevy/GMC 6.6L LLY/LBZ Duramax. Upgrading to an aftermarket downpipe with larger diameter tubing and smooth mandrel bends can offer increases in horsepower and torque and help lower exhaust gas temperatures (EGT's). The factory OE downpipe typically incorporates unnecessary bends or crimps in the tubing restricting exhaust flow. Shop all the leading manufacturers including AFE, AP Emissions Technologies, Banks Power, BD-Power, Dorman, Fleece, PPE, Magnaflow, MBRP, and more!