SOTF Tune without Hardware 2020-2023 Duramax L5P for HP Tuners 17ps Increased transmission line pressure for

Increased transmission line pressure for holding more HP and torque

Increase your 2004

***Cab and Chassis trucks only have 2 power levels on the switch (heavy tow and sport economy)***

Tuning Highlights:

RACE (Tune Position #5)

SOTF Tune without Hardware 2020-2023 Duramax L5P for HP Tuners 17ps Increased transmission line pressure forTake performance to the next level on your 2020, 2021, 2022, or 2023 Chevy Silverado or GMC Sierra with our Switch on the Fly Tuning for the L5P Duramax. Our tunes are purpose built and the switch on the fly (SOTF) option gives you the power to select from five different power levels on the fly using your factory steering wheel controls or the HP Tuners Diesel Switch. Gone are the days of spending 10 minutes changing your tune when you need to tow.