⟲ 360° — drag meThe facts.
| Model | JP MJ 008 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Kawasaki Ninja 400 (2018–2024) |
| Installation | Plug-and-play, no wiring harness modifications required |
DescriptionThe whole story▼
The JP MJ 008 is fitted to the Ninja 400 to make an injected engine pleasanter rather than faster, and the description says exactly that.
Key Features
- Kawasaki Ninja 400 (2018–2024)
- Preset fuel module, no programming required
- Corrects the mixture without remapping the original electronics
- Plug-and-play with model-specific wiring
- Around 200 g, fitted in an evening
- Unplugs at any time, nothing is written to the motorcycle
The Club Racer's Choice
More Ninja 400s are raced than almost any other small motorcycle. The engine is mapped conservatively and responds well to being asked for more.
Nothing Is Reprogrammed
The standard controller keeps its own map, its own adaptations and its own fault memory. A workshop plugging in a diagnostic tool finds the motorcycle exactly as the factory left it, which is a genuine advantage over flashing the original unit.
On a Current Machine
Euro 5 mapping is tighter and better resolved than anything before it, which means the gains are smaller and mostly confined to the transition off a closed throttle.
Between the Loom and the Injectors
The module is wired in series with the injector circuit, which is the least invasive place to intervene in a modern motorcycle. Everything upstream carries on unaware and everything downstream simply receives a slightly different instruction.
Dealers and Terms
It unplugs in minutes. Owners inside a warranty period generally remove it before an appointment and refit it afterwards, and the connectors are designed to tolerate that repeatedly.
What Improves First
Pick-up from a closed throttle. Almost every owner mentions it before anything else, because it happens dozens of times on any ride and is the most irritating thing a lean map produces.
Winter Storage
Nothing about the module objects to a cold garage and there is no battery in it. It draws no current when the ignition is off and needs no attention over a layup.
The Rev Limiter
Untouched, because it belongs to the standard controller. Nobody should fit this expecting the engine to rev further than the factory allowed.
Fitment and Compatibility
- Kawasaki Ninja 400 (2018–2024)
Specifications
| Model | JP MJ 008 |
|---|---|
| Manufacturer | JetPrime |
| Material | CNC-milled Ergal 7075 |
| Fits | Kawasaki Ninja 400 (2018–2024) |
| Installation | Plug-and-play, no wiring harness modifications required |
What's includedEverything in the box▼
- 1x power module
FitmentWhich bikes this fits▼
- Kawasaki Ninja 400 (2018–2024)
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