SOTF Tune 2017-2019 Duramax L5P for HP Tuners race Also recommend FASS or Air

Also recommend FASS or Air Dog lift pump to maintain 540 RWHP

Refined Factory Power output

From Towing up to GVWR to all out performance

What about Transmission tuning

SOTF Tune 2017-2019 Duramax L5P for HP Tuners race Also recommend FASS or AirTake performance to the next level on your 2017, 2018, 2019 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. The switch