Harley Davidson Fat Bob FXFB (2018 - 2020)

The BoosterPlug is accepted world wide, as a brilliant and affordable tuning mod to transform your Harley Davidson Fat Bob FXFB from ”OK” to ”Absolutely Marvelous”.

The BoosterPlug is the best way to sort out the fuel injection tuning on your bike - without the high cost and the complicated programming of a Power Commander.

Installation couldn't be easier - The BoosterPlug comes with the correct connectors to let you plug it in to the bikes wire harnes.

No programming required. There is no better way to improve your riding experience:

- Soft and smooth throttle response
- Better acceleration
- Remove the low speed surging
- Stronger and more reliable Idle
- Aftermarket exhaust backfire reduced or eliminated

This version of the BoosterPlug mod covers all versions of the Harley Davidson Fat Bob FXFB with the Milwaukee 8 engine (2018 to 2020).

Please note that we can not build a BoosterPlug for the "2021 and newer" model due to new emission regulations. You can see the detailed explanation here.