Take all of the guesswork out of custom tuning by picking up this Smarty MM3 that is tuned for your specific upgrades.Ĭustom tuning capability dramatically widened the performance and driveability when it first arrived on the Cummins market in 2011 with the advent of EFIlive for the 2006/07 5.9. For those that have made mechanical upgrades to the truck, such as upgraded injectors or turbo, you benefit from more custom tuning.
And why wouldn't it be, their out of the box tuning works excellent for impressive power gains that are truly usable, delivering off idle responsiveness, a smoother, more linear power band, and even increased fuel economy. Smarty has long been rivaled as the premier tuning device for Cummins.