2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Stock & Modified Stock Turbos

If your GM 6.6L Duramax is experiencing turbo issues or you're simply seeking to improve your diesel's performance, explore our selection of Stock and modified Stock Turbos. Many of these turbos feature low-inertia designs, providing enhanced top-end horsepower and throttle response compared to larger over-boosted options. Installation is straightforward, as many are OE-spec compatible, allowing you to achieve impressive performance upgrades quickly and easily! Overhaul your turbo performance with our lineup of Stock and Modified Stock Turbos today! Check out our selection of Air Intakes for further enhanced performance!  GM Duramax Fitments: 2004, 2005 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.