Fuel Injection improvements on the Yamaha XT660X are usually expensive and complicated. The BoosterPlug is a better and proven alternative.
Optimizing the fuel injection on your bike does no longer require expensive and complicated devices like a Power Commander - and no time consuming setup procedures.
No complicated mechanical work or programming is required when installing the BoosterPlug. You simply plug it in using the original connectors and you are done.
Inexpensive, easy installation, proven results:
- Much better and softer throttle response
- Stronger acceleration
- The end of the dreaded low speed surging
- Stronger idle - no more stalling problems
- Deceleration backfires in the exhaust reduced to a minimum
This version of the BoosterPlug covers all versions of the Yamaha XT660X from 2004 and newer.
General Installation Instructions
Bike Specific Installation Instructions