The BoosterPlug is the easiest and most efficient way to upgrade the fuel injection tuning on your Harley Davidson Street Glide Special FLHXS .
The BoosterPlug is the best way to sort out the fuel injection on your bike - without the high cost and the complicated programming of a Power Commander.
You don't have to be a trained engineer or a computer programmer to install the BoosterPlug tuning module. Easy and fast plug and play installation.
Release the full potential in your motorcycle:
- Fix the snatchy throttle response problem
- Faster acceleration
- Say goodbye to the low speed surge issue
- Stronger idle and less tendency to stall
- Aftermarket exhaust backfire reduced or eliminated
This version of the BoosterPlug tuning mod covers all versions of the Harley Davidson Street Glide Special FLHXS (2014-2016).
If you have a newer Street Glide Special FLHXS, you can find the BoosterPlug tuning module for it in the related products below.
General Installation Instructions
Bike Specific Installation Instructions