2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Exhaust Brakes

Adding an exhaust brake on your 2001-2004 GM 6.6L is a great way to improve towing performance and capability. We carry a wide selection of aftermarket exhaust brakes that help you maintain your Sierra or Silverado in great condition by saving your factory brake pads over time. An exhaust brake works by trapping engine pressure in the exhaust system, which in turn forces the engine to rotate slower, greatly reducing your stopping distance in ever situation. What's more, an exhaust brake will also help control downhill vehicle speed, reduce brake heat, and provide a greater braking reserve for the conventional braking system on your GM 2500 or 3500HD.  GM Duramax Fitments: 2001, 2002, 2003, 2004 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.