2006-2007 GM 2500HD/3500HD 6.6L LBZ Duramax Downpipes

If you're looking for more power, upgrading the restrictive factory downpipes on your 2006-2007 GM 6.6L Duramax should be a top priority. Our selection of downpipe kits is an easy way to give your 2500HD/3500HD a more aggressive exhaust note while boosting power, torque, and fuel efficiency. These kits also help reduce EGTs, keeping your truck's temperatures under control during high-performance use. Explore our full range of downpipes to find the perfect fit for your GM truck, and start showing off your performance upgrades with confidence. Pair your high-performing downpipe with our selection of Single-Exit Exhaust or Dual-Exit Exhaust. GM Duramax Fitments: 2006, 2007 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.