Harley-Davidson Nightster models Tuning
1 supported Harley-Davidson Nightster models application, 2022+.
Harley-Davidson
1 supported Nightster models tunes
Harley-Davidson Nightster models
1250
121 HP stock / 92 lb-ft
2022+
- Controller
- Engine (ECU): Delphi MT21M
- Flash method
- OBD port, Bench
AutoTunerBook a tune
All Supported Harley-Davidson Nightster models Tunes
| Engine | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| 1250 | 2022+ | 121 hp | ECU Delphi MT21M | AutoTuner |
Other Harley-Davidson Models
About Harley-Davidson Nightster models tuning
Rapid Racing supports 1 Harley-Davidson Nightster models application from 2022+ through AutoTuner, with stock outputs up to 121 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: 1250.
Supported controllers: Delphi MT21M.
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.