Harley Davidson Softail Deluxe FLDE (2018 - 2020)

Improving the fuel injection on your Harley Davidson Softail Deluxe FLDE is easy and efficient with the proven BoosterPlug solution.

With the BoosterPlug you will have a better solution than the complicated and expensive Power Commander that is almost impossible to set up correctly.

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:

- Soft and smooth throttle response
- Stronger acceleration
- The end of the dreaded low speed surging
- Powerfull idle and no more stalling
- Little to no popping in your aftermarket exhaust

This version of the BoosterPlug covers all versions of the Harley Davidson Softail Deluxe FLDE 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.