Harley-Davidson 1250 Tuning
Supported in 3 Harley-Davidson models, 2022+.
Harley-Davidson
3 supported 1250 applications
Models With the Harley-Davidson 1250
All Supported Harley-Davidson 1250 Tunes
| Model | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| Nightster models | 2022+ | 121 hp | ECU Delphi MT21M | AutoTuner | |
| Panamerica models | 2022+ | 121 hp | ECU Delphi MT21M | AutoTuner | |
| Sportster models | 2022+ | 121 hp | ECU Delphi MT21M | AutoTuner |
About Harley-Davidson 1250 tuning
We tune the Harley-Davidson 1250 in 3 applications across the Nightster models, Panamerica models, Sportster models, from 2022+, in gasoline form, with stock outputs of 121 hp. Calibrations are written on AutoTuner for your exact hardware and fuel, then proven on our Dynojet 424xLC2 in Jenison, MI.
This engine runs on: 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.