2019 - 2021 Ram Cummins 2500 3500 4500 5500 | EFI Live

**If you purchased an EFI LIVE License ONLY for $125, you are confirming that you already have a flash device (AutoCal or FlashScan). If you do not know what either of those are you need to select the AutoCal  Device + EFI Live License option to flash your truck. Tuning Benefits: Increase in Mileage Increase in Horsepower Increase in Torque Compatible Vehicles: 2019 - 2021 Ram Cummins 2500 3500 4500 5500 Pickups and Cab Chassis/Incomplete Trucks Compatible Transmissions: Auto 68RFE (Found in auto based 2500 Pickups) Auto Aisin (Found in auto based 3500/4500/5500 pickups and Cab Chassis / Incomplete Trucks) Manual G56 IMPORTANT:  2018+ Trucks REQUIRE a BYPASS CABLE to be installed in order to flash the truck (simple installation). All vehicle and transmission tuning require an EFI Live AutoCal Device + Licensing for deployment, unless the individual already has an EFI Live AutoCal Device and the appropriate Licensing. A Windows based computer is needed to flash the tuning