JMC Tuning
Every JMC model, engine, and controller we can tune, 2016+.
JMC
8 supported vehicles via AutoTuner
Select Your JMC Model
JMC Engines We Tune
JMC ECUs and TCUs
JMC tuning at Rapid Racing
We support 8 JMC vehicles across 6 models, covering model years 2016+, through AutoTuner. That includes diesel powertrains and 3 engine and transmission controllers.
Each JMC tune is calibrated for your exact hardware and fuel, then verified with real data on our Dynojet 424xLC2 in Jenison, MI, serving Grand Rapids and West Michigan. Not sure which controller you have? Browse all supported ECUs or ask us.
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.