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Remote calibration for the C8 Corvette ZR1X.
Fuel options
Single fuel is pump gas only. Dual fuel covers E85 and blends.
Before you order
Contact Johnson Tuning to confirm your fuel system, injectors and tuning hardware. Ask about TCM calibration requirements for your car.
HP Tuners requirements
The supported 2026 ZR1X E68 engine controller requires 10 Universal Credits. The original ECM must complete HP Tuners’ E68 Global B upgrade before engine tuning. MPVI4 and current VCM Suite are required.
If transmission tuning is included, the original T46 TCM also needs its separate Global B upgrade and 6 additional credits (16 total for ECM + TCM). An ECM-only order does not include TCM calibration.
Shop MPVI4 and available credit bundles. The store offers 0, 2 or 4 credits with the interface; contact Johnson Tuning to arrange any remaining credits. Hardware, credits and controller upgrade services are separate from the remote tune. Confirm your VIN, model year, controller/OS and transmission with Johnson Tuning and HP Tuners’ current supported vehicle list before ordering.
Remote calibration for the C8 Corvette ZR1X.
Fuel options
Single fuel is pump gas only. Dual fuel covers E85 and blends.
Before you order
Contact Johnson Tuning to confirm your fuel system, injectors and tuning hardware. Ask about TCM calibration requirements for your car.
HP Tuners requirements
The supported 2026 ZR1X E68 engine controller requires 10 Universal Credits. The original ECM must complete HP Tuners’ E68 Global B upgrade before engine tuning. MPVI4 and current VCM Suite are required.
If transmission tuning is included, the original T46 TCM also needs its separate Global B upgrade and 6 additional credits (16 total for ECM + TCM). An ECM-only order does not include TCM calibration.
Shop MPVI4 and available credit bundles. The store offers 0, 2 or 4 credits with the interface; contact Johnson Tuning to arrange any remaining credits. Hardware, credits and controller upgrade services are separate from the remote tune. Confirm your VIN, model year, controller/OS and transmission with Johnson Tuning and HP Tuners’ current supported vehicle list before ordering.
