Denso RH850 ECU Tuning
Engine control unit used in 14 supported models from 2 makes.
Suzuki Powersports with the Denso RH850
All Suzuki Powersports tunes- Suzuki Powersports DRZ-4S2025+400ccAutoTuner
- Suzuki Powersports GSX-R 1300 Hayabusa2021+1300ccAutoTuner
- Suzuki Powersports GSX-S 10002021+1000ccAutoTuner
- Suzuki Powersports GSX-S9502021+1000ccAutoTuner
- Suzuki Powersports Katana2022+1000ccAutoTuner
Yamaha with the Denso RH850
All Yamaha tunes- Yamaha MT-072025+690ccAutoTuner
- Yamaha MT-092021+890ccAutoTuner
- Yamaha MT-102022+1000ccAutoTuner
- Yamaha T-Max2021+560ccAutoTuner
- Yamaha Tracer 9002021+890ccAutoTuner
- Yamaha XSR 9002022+890ccAutoTuner
- Yamaha XT700 Ténéré2025+690ccAutoTuner
- Yamaha YZF-R12020+1000ccAutoTuner
- Yamaha YZF-R92025+890ccAutoTuner
About Denso RH850 tuning
The Denso RH850 engine control unit is supported in 14 models from Suzuki Powersports, Yamaha. We read, modify, and flash it with AutoTuner, then verify the result on our Dynojet 424xLC2 in Jenison, MI. A custom calibration optimizes fueling, ignition timing, boost, and torque limits for your exact build.
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.