At long last Quadzilla has released a programmer for the 07.5-08 Chevy Duramax LMM. This tuner is called the S2TUNER-LMM and will add up to 110 HP onto Chevy’s powerful new Duramax.  Programming combines the use of fuel injection pulse width and injection timing to create the ultimate horsepower and torque curves. The precision tuned timing maps are one of the reasons the Stealth Programmer has the lowest exhaust temperatures on the market. Perhaps the best part of the Stealth Tuner is the mileage gain that you will see. We all know that a more efficient engine will gain fuel economy and we know exactly where the stock parameters are lacking. Depending on your driving style, you can expect to see a 1-4 mpg increase!

The Quadzilla Stealth Tuner is packed full of power and features for your 2007-2008 LMM Duramax. Included in this awesome tuner is the ability to modify your speedometer to compensate for larger tires, remove your top speed limiter, retrain your transmission, and read and erase engine and transmission fault codes. All tuners also have the ability to use these user-defined categories without installing an engine tune.  Quadzilla also offers free updates and revision to the original owner forever.