Hummer H2 Tuning
4 supported Hummer H2 applications, 2003+.
Hummer
4 supported H2 tunes
Select Version
All Supported Hummer H2 Tunes
Other Hummer Models
About Hummer H2 tuning
Rapid Racing supports 4 Hummer H2 applications from 2003+ through AutoTuner and HP Tuners, with stock outputs up to 398 hp. Every calibration is built for your exact engine, fuel, and modifications, then verified on our Dynojet 424xLC2 in Jenison, MI, serving Grand Rapids and West Michigan. Remote tuning is available for supported Hummer H2 applications.
Supported engines: 6.0, 6.2, 6.2i V8.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.