Harley-Davidson Fat Bob Tuning
1 supported Harley-Davidson Fat Bob application, 2021-2023.
Harley-Davidson
1 supported Fat Bob tunes
Harley-Davidson Fat Bob
114 (FXFBS)
2021-2023
- Controller
- Engine (ECU)
- Remote tuning
- Remote tuning available
HP TunersBook a tune
All Supported Harley-Davidson Fat Bob Tunes
| Engine | Years | Version | Stock power | Controller | Platform |
|---|---|---|---|---|---|
| 114 (FXFBS) | 2021-2023 | ECU | HP Tuners |
Other Harley-Davidson Models
About Harley-Davidson Fat Bob tuning
Rapid Racing supports 1 Harley-Davidson Fat Bob application from 2021-2023 through HP Tuners. 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. Remote tuning is available for supported Harley-Davidson Fat Bob applications.
Supported engines: 114 (FXFBS).
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.