GMC's lineup of American trucks and SUVs features the EcoTec3 V8, turbocharged four-cylinder and 3.0 Duramax diesel engines. All three are established tuning platforms within the GM ecosystem with proven development history.
The GMC Sierra and Canyon with the 3.0 Duramax inline-six diesel respond to Stage 1 with +40–60 Nm and improved towing performance. Petrol V8 models benefit from ignition and fuel map optimization, improving throttle response and efficiency.
GMC ECU tuning uses HP Tuners and GM-specific professional tools. OBD port access is standard. Towing tune optimization is available for Sierra and Yukon owners. All calibrations are fully reversible.