2006-2007 GM 2500HD/3500HD 6.6L LBZ Duramax Chips, Modules & Tuners

Fully unleash your 6.6L Duramax's full power by installing any of our featured aftermarket Chips, modules and tuners! Gain additional horsepower, torque and throttle by upgrading your stock PCM to a performance-oriented tuner! Engineered to overhaul your truck's shifting for an enhanced gear-holding and optimized shift pressures, GM 2500HD/3500HD owners can expect an excellent increase in overall performance. Achieve improved injection timing/pulse and fuel rail pressure with a new aftermarket PCM Tuner from Alligator Performance. For even greater added power, check out our selection of Turbo 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.