⟲ 360° — drag meThe facts.
| Model | JP CJP 012D |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Harley Davidson Dyna Street BOB FXDB-I (2003–2017) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP CJP 012D corrects the Dyna Street BOB FXDB-I's fuelling cell by cell rather than along a single curve, which is the difference between a map and a trim.
Key Features
- Harley Davidson Dyna Street BOB FXDB-I (2003–2017)
- Fully programmable fuel map, written on a PC
- Complete two-axis management: engine speed and load
- For engines with an aftermarket exhaust or air filter
- Plug-and-play with model-specific wiring
- Unplugs at any time, nothing is written to the motorcycle
Rubber Mounted Twin Cam
The Dyna frame isolates the engine on rubber mounts, which lets Harley run a big vee twin without shaking the rider off at idle.
What Can Go Wrong
A map leaned out where the engine is working hard. That is the one genuinely dangerous mistake available here, and it is why a wideband sensor is not optional equipment.
A Track-Only Machine
The clearest case for this unit. A motorcycle with a full system, no catalyst and a known fuel is exactly the situation where a factory map is furthest from useful.
Full Load Is Easier
Wide open throttle is one line through the map and a dyno reads it quickly. It is also the region a road rider visits least, which is worth remembering before spending a day on it.
The Two Units Compared
One arrives finished and asks nothing. This one arrives empty and asks for a wideband, a laptop and several evenings. Neither is better; they answer different questions.
Standard Fuel Hardware
Pump, rail, regulator and injectors all remain the factory's. The unit changes how long they open and nothing about what they are.
What the Dealer Sees
An additional box under the seat. It unplugs in minutes, and most owners remove it before an appointment and reconnect it the same evening.
A Note on Warranty
An additional controller is visible and a dealer will see it. It unplugs in minutes and the motorcycle is standard, which is the whole reason to prefer this over a reflash.
What a Session Actually Looks Like
A quiet road or a dyno, a laptop connected, a wideband reading logged, one region of the map adjusted, then the same run repeated to see whether the number moved. Three or four rounds of that fill an evening.
Fitment and Compatibility
- Harley Davidson Dyna Street BOB FXDB-I (2003–2017)
Specifications
| Model | JP CJP 012D |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Harley Davidson Dyna Street BOB FXDB-I (2003–2017) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x control unit
FitmentWhich bikes this fits▼
- Harley Davidson Dyna Street BOB FXDB-I (2003–2017)
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