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2023 - 2026 5.3, 6.2 Chevrolet Silverado E85 Tuning
40 Wheel Horsepower improved e85 tuning, no other mods required, Bolt on mods supported
15 Wheel Horsepower improved 91 octane tuning FBO recommended
Stock, 91 octane and FULL e85 tuning included
Unlocking ECU is REQUIRED and is included
DEFI RTD4 Tuning Interface included
Licensing ECU included; for tuning
No ECU unlock required, No ECU removal required
Plug n Play, swap fuel, flash ECU, Go RIP!
Tire size and gear changes for accurate speedometer included for all Truck tuning packages
Speedometer calibration perfected
No CEL
*ECU must be removed from vehicle and shipped to HP Tuners for E90 class ECU upgrade, return shipping is included
40 Wheel Horsepower improved e85 tuning, no other mods required, Bolt on mods supported
15 Wheel Horsepower improved 91 octane tuning FBO recommended
Stock, 91 octane and FULL e85 tuning included
Unlocking ECU is REQUIRED and is included
DEFI RTD4 Tuning Interface included
Licensing ECU included; for tuning
No ECU unlock required, No ECU removal required
Plug n Play, swap fuel, flash ECU, Go RIP!
Tire size and gear changes for accurate speedometer included for all Truck tuning packages
Speedometer calibration perfected
No CEL
*ECU must be removed from vehicle and shipped to HP Tuners for E90 class ECU upgrade, return shipping is included