Still RX 70 Tuning
5 supported Still RX 70 applications, 2015+.
Still
5 supported RX 70 tunes
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All Supported Still RX 70 Tunes
| Engine | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| RX 70-50 2.9l | 2016+ | 72 hp | ECU Bosch EDC17CV52 | AutoTuner | |
| RX 70-60 4.0l | 2015+ | 107 hp | ECU Bosch EDC17CV52 | AutoTuner | |
| RX 70-70 4.0l | 2015+ | 107 hp | ECU Bosch EDC17CV52 | AutoTuner | |
| RX 70-80 4.0l | 2015+ | 107 hp | ECU Bosch EDC17CV52 | AutoTuner | |
| RX 70-80/900 4.0l | 2015+ | 107 hp | ECU Bosch EDC17CV52 | AutoTuner |
About Still RX 70 tuning
Rapid Racing supports 5 Still RX 70 applications from 2015+ through AutoTuner, with stock outputs up to 107 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: RX 70-50 2.9l, RX 70-60 4.0l, RX 70-70 4.0l, RX 70-80 4.0l, RX 70-80/900 4.0l.
Supported controllers: Bosch EDC17CV52.
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.