Tuning is a surefire way to give your tough Cummins-equipped truck significantly more horsepower and torque, and some of the best tuning available comes from Smarty Tuners. Smarty offers some of the most powerful and reliable Cummins performance tunes on the market, all in an extremely easy-to-use device that delivers big power in just minutes. The Smarty S and Smarty Jr. tuning devices come loaded with premium tunes that can be used alongside other Cummins parts and modifications to elevate your custom build.Â
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