Single Tune 2017-2019 Duramax L5P for HP Tuners Power Level::Heavy Tow Select one of our purpose

Select one of our purpose built tunes based on what you use your truck for the most

Puts your vehicle near the 380 RWHP mark

adjustable

Wider torque curve assists heavy loads

Direct Bolt-on product using factory mounting location

Single Tune 2017-2019 Duramax L5P for HP Tuners Power Level::Heavy Tow Select one of our purposeImprove the performance on your 2017, 2018, 2019 Chevy Silverado or GMC Sierra. Hardware and credits are optional (if you already own them), but required to perform ECM tuning. Single Tune Power Levels options are as follows: Optimized Stock Tune Refined factory settings Smoother running engine & power delivery Reduced exhaust temperatures Leaves factory rev limit in place Heavy Tow Tune For those towing from 8,000 lbs up to GVWR (Gross Vehicle Weight