Single Tune 2017-2019 Duramax L5P for HP Tuners Power Level::Heavy Tow Direct Bolt-on product using factory

Direct Bolt-on product using factory mounting location

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

Part number: T5165BLK

Steel block off plates

Single Tune 2017-2019 Duramax L5P for HP Tuners Power Level::Heavy Tow Direct Bolt-on product using factoryImprove 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