Continental SIM2K-251 ECU Tuning

Engine control unit used in 15 supported models from 2 makes.

Hyundai with the Continental SIM2K-251

Kia with the Continental SIM2K-251

About Continental SIM2K-251 tuning

The Continental SIM2K-251 engine control unit is supported in 15 models from Hyundai, Kia. 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.

Browse all supported ECUs and TCUs

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.