Continental SIM2K-305 TCU Tuning
Transmission controller used in 4 supported models from 2 makes.
Hyundai with the Continental SIM2K-305
All Hyundai tunes- Hyundai IONIQ2017+1.6i GDI HybridAutoTuner
- Hyundai Kona2023+SX2 · 1.6i GDI HybridAutoTuner
Kia with the Continental SIM2K-305
All Kia tunes- Kia Niro2016+1.6i GDI HybridAutoTuner
- Kia X-Ceed2019+1.6i GDI HybridAutoTuner
About Continental SIM2K-305 tuning
The Continental SIM2K-305 transmission control unit is supported in 4 models from Hyundai, Kia. We read, modify, and flash it with AutoTuner, then verify the result on our Dynojet 424xLC2 in Jenison, MI. Transmission tuning sharpens shift timing, firmness, and torque limits to match your power.
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.