Fuel Injection mods on the Kawasaki Ninja 400 are usually expensive and complicated. The BoosterPlug is the better and proven aftermarket tuning alternative.
Compared to the Power Commander, the BoosterPlug offers similar or better results for must owners - at a much lower price and without the complicated setup of multiple parts.
You don't have to be a trained engineer or a computer programmer to install the BoosterPlug tuning mod. Easy and fast plug and play installation, and no additional aftermarket parts required.
Release the full potential in your motorcycle:
- Eliminate the poor on/off like throttle action
- Faster acceleration
- Say goodbye to the low speed surge issue
- Stronger idle - no more stalling problems
- Far less popping in the exhaust on deceleration
This version of the BoosterPlug covers all versions of the Kawasaki Ninja 400 from 2018 and newer.
General Installation Instructions
Bike Specific Installation Instructions