2007.5-2010 GM Duramax 6.6L LMM Stock & Modified Stock Turbos

For those looking to get the absolute most power and performance out of their 2007.5-2010 GM 6.6L Duramax LMM, you're going to need to upgrade the turbocharger under the hood of your Sierra/Silverado 2500/3500. Aftermarket turbos help deliver a significant increase in horsepower by forcing more air through the engine while enhancing your performance gains made by other engine modifications. If you're simply looking to swap out the OEM system with a replacement, we also carry a handful of replacement stock turbochargers that are designed as a drop-in package of your OEM components. No matter what your intended applications may be, pick up the best turbo for your truck's custom build right here at Alligator Performance! GM Duramax Fitments: 2007, 2009, 2010 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.