Kia K4 Tuning
1 supported Kia K4 application, 2014+.
Kia
1 supported K4 tunes
Kia K4
1.8 MPI
148 HP stock / 131 lb-ft
2014+
- Controller
- Engine (ECU): Continental SIM2K-241
- Flash method
- Boot mode, OBD port
AutoTunerBook a tune
All Supported Kia K4 Tunes
| Engine | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| 1.8 MPI | 2014+ | 148 hp | ECU Continental SIM2K-241 | AutoTuner |
Other Kia Models
About Kia K4 tuning
Rapid Racing supports 1 Kia K4 application from 2014+ through AutoTuner, with stock outputs up to 148 hp. Every calibration is built for your exact engine, fuel, and modifications, then verified on our Dynojet 424xLC2 in Jenison, MI, serving Grand Rapids and West Michigan.
Supported engines: 1.8 MPI.
Supported controllers: Continental SIM2K-241.
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.