Harley Davidson Street Glide FLHX (2017 - 2020)

The BoosterPlug is accepted world wide, as a brilliant and affordable way to transform your Harley Davidson Street Glide FLHX from ”OK” to ”Absolutely Marvelous”.

Optimizing the fuel injection on your bike does no longer require expensive and complicated aftermarket parts like a Power Commander - and no time consuming setup procedures.

You don't have to be a trained engineer or a computer programmer to install the BoosterPlug. Easy and fast plug and play installation. No additional parts required.

A plug and play aftermarket solution to improve your motorcycle in so many ways:

- Improved and softer throttle response
- Faster acceleration
- Fix the annoying low speed surging
- Stronger and more reliable Idle
- Deceleration backfires in the aftermarket exhaust reduced to a minimum

This version of the BoosterPlug covers all versions of the Harley Davidson Street Glide FLHX with the Milwaukee 8 engine (2017 to 2020).
If you have an older Street Glide FLHX, you can find the BoosterPlug tuning module for it in the related products below.

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.