Acura RLX Tuning
1 supported Acura RLX application, 2014+.
Acura
1 supported RLX tunes
Acura RLX
3.5 V6 (J35Y)
310 HP stock / 272 lb-ft
KC1-KC2 from 2014+
- Controller
- Engine (ECU): Keihin SH72543
- Flash method
- OBD port
AutoTunerBook a tune
All Supported Acura RLX Tunes
| Engine | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| 3.5 V6 (J35Y) | 2014+ | KC1-KC2 | 310 hp | ECU Keihin SH72543 | AutoTuner |
Other Acura Models
About Acura RLX tuning
Rapid Racing supports 1 Acura RLX application from 2014+ through AutoTuner, with stock outputs up to 310 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: 3.5 V6 (J35Y).
Supported controllers: Keihin SH72543.
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.