Bosch MG1CS623 ECU Tuning
Engine control unit used in 3 supported models from 2 makes.
Infiniti with the Bosch MG1CS623
All Infiniti tunes- Infiniti QX802025+3.5T V6AutoTuner
Nissan with the Bosch MG1CS623
All Nissan tunes- Nissan Armada2024+3.5T V6, 3.5T V6 (Nismo)AutoTuner
- Nissan Patrol2025+3.5T V6, 3.5T V6 (Nismo)AutoTuner
About Bosch MG1CS623 tuning
The Bosch MG1CS623 engine control unit is supported in 3 models from Infiniti, Nissan. 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.