Efi Live Custom Tuning for 2019-2021 6.7 Cummins

Every set of tunes is built specifically for your truck, mods and requirements.

Some of the features include :
All torque and speed limiters gone.
Disable Pre/Post Injection events.
Exhaust brake persists through key cycle.
Exhaust brake power increased and enabled down to lower speeds.
Considerable fuel mileage gains over the stock calibrations.
Dramatically improved pedal sensitivity over stock tuning.
2nd gear lockup in tow haul mode.
Much faster and more firm shifts. Better shift points to prevent lugging.
Increased line pressure 160psi max for stock valve bodys, 250psi+ for custom transmissions.
No derates or shutdowns enabled. Truck will never leave you stranded or limit your speed for any reason.

Current regular power levels available.
1- STOCK
2- TOW +30HP
3- STREET +120hp

Default SOTF tune set includes:
1. STOCK
2. ECO TOW
3. HEAVY TOW
4. STREET
5. RACE

Transmission tuning included free no extra charge for 68rfe trucks.

If you need the 5 level SOTF tune file make sure to get a switch from here:
https://optimalwelding.com/collections/engine-management/products/2019-cummins-5-position-switch

If your using an existing Autocal please note the device serial number in the mods list.

Please confirm you have entered the correct VIN and Transmission before placing the order. You will be charged a tune file update fee if its entered incorrectly. Just give us a email or call if you need to confirm details about your vehicle.



Any questions? Send us an email!
support@optimalwelding.com