Cumminstuner's King offers the best in tuning calibrations for your 5.9L of 6.7L Cummins with a built transmission. We use EFILive tuning software and years of tuning experience to make sure your truck runs like no other. Our CSP tunes allow you to switch your tunes on the fly! No more stopping to switch tunes or waiting for tunes to load. You can change tunes while driving your truck. Purchase the CSP switch and all you will have to do to change tunes is turn a knob! It's as easy as changing your radio station. Imagine, going from 300 rwhp to 500 rwhp with the turn of a knob!
Our CSP tunes come in two packages: Tow and Performance. Our tow package is for customers looking to get the most out of there work trucks and are not interested in pushing the limits of their stock system. Don't get us wrong, the Sport Economy and Race tune will put you back in your seat, but will also deliver the best fuel economy we have to offer. Click HERE for the tune breakdown.
The Performance package is for customers who spend their weekends looking to embarrass anyone who thinks an 8,000 lbs. truck can't move off the line. If the Race tune isn't enough for you, and you want an ace in the hole our Race + tune will push your stock trans to the ragged edge. Click HERE for the tune breakdown.
Product Includes: SPADE tuning device, OBD2 and USB cables, CSP tune, and Stock Tune.