The BoosterPlug is the smarter tuning choice, when you want to improve the rideability on your Harley Davidson Road King Classic FLHRC without spending a fortune.
Compared to the Power Commander, the BoosterPlug tuning offers similar or better results for must owners - at a much lower price and without the complicated setup.
You don't have to be a trained engineer or a computer programmer to install the BoosterPlug. Easy and fast plug and play installation.
The smarter choice to optimize the fuel Injection on your motorcycle:
- Eliminate the poor on/off like throttle action
- Faster acceleration
- Eliminate the low speed surge problem
- Removes the weak idle and stalling issues
- Far less popping in the exhaust on deceleration
This version of the BoosterPlug tuning module covers all versions of the Harley Davidson Road King Classic FLHRC (2007 only).
If you have a newer Road King Classic FLHRC, you can find the BoosterPlug for it in the related products below.
General Installation Instructions
Bike Specific Installation Instructions