2006-2007 GM 2500HD/3500HD 6.6L LBZ Duramax Exhaust Manifolds & Up-Pipes

Enhance the performance of your 2006-2007 GM 6.6L Duramax with a high-quality exhaust manifold from Alligator Performance. Our manifolds are engineered to deliver noticeable gains in horsepower and torque while reducing back pressure. Experience improved throttle response and unlock the full potential of your 6.6L engine. Choose from various designs, whether you're seeking increased low-end power with a single-scroll manifold or top-end performance with a twin-scroll setup. Discover the perfect match for your GM at Alligator Performance. Further enhance your diesels performance with Engine Upgrades! 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.