Electronics
JDM KLX250/300 ECU
Japanese market ECU with advanced ignition timing. Unlocks top-end power and removes soft rev limiter.
$335.00
Currently out of stock
- +Unlocks 30+ HP potential
- +Removes soft rev limiter
- +Stable overrev to 10000 rpm
- +Dynotested
- +Plug-and-play installation
Weight: 160g
Overview
The Japanese market ECU for KLX250 has unrestricted ignition advance timing so it doesn't have soft rev limit as the rest of the world models. This unlocks power that was restricted for emissions compliance.
What It Does
| Model | Stock Soft Rev Limit | JDM Rev Limit |
|---|---|---|
| KLX250 | 7500 RPM | 11000 RPM |
| KLX300 | 8000 RPM | 11000 RPM |
Specifications
| Spec | Value |
|---|---|
| Compatibility | all EFI KLX250 / KLX300 |
| Ignition | up to BTDC 39° @ 11000 rpm |
| Rev Limit | 11000 rpm |
| Peak power | ~9000-10000 rpm |
| Installation | Direct swap (10 min) |
| Origin | Japan OEM |
Dyno Tested
We've tested this ECU on our dyno with various configurations:
- Stock bike: +2-3 hp top end
- With intake and exhaust mods: +7-9 hp top end
- Full build: 30+ hp from the wheel achievable
Installation
Located under the left rear fender, mounted on the airbox. Unplug stock ECU, plug this one in.
For stock KLX300, add a 270cc Fuel Injector for proper fueling. For modified bikes, a fuel controller (PCFC or EJK) may be needed as an interim solution.
For best results, pair with an Airbox Snorkel for improved airflow.