09/08/2026
This week, we will be giving this 2019 Ram Rebel some serious power upgrades. Just for fun, we decided to run it stock, and then again with a Diablo I3 Tuner with a Hemifever 93 octane custom engine tune and 8 speed transmission tune. Everything about this truck is bone stock, and it only has 22,000 miles on the odometer. We picked up almost .9 and 4.5 mph in the 1/4 mile from just the tune alone. It gained more than a full second in the 0 to 60 time. We have said this from day one, but custom tuning is by far the single best performance upgrade you can add to your truck.