Softail Tuners / Fuel Systems

What Is In This Collection

Tuners and engine management, throttle bodies, intake manifolds, carburetors and fuel injectors, along with the choke cables, brackets, gaskets and hardware that go with them, for the Softail.

Softail Fitment

Softail covers '84-'17 - FXST, FLSTF Fat Boy, FLSTC Heritage, FXSTB Night Train, FLS Slim and FXSB Breakout. These are cable-throttle bikes. 2018 and up is the M8 Softail, a different platform - see M8 Softail Parts.

Years that change what fits:

• 2000 - the Softail took the Twin Cam, a year after Touring and Dyna.
• 2018 - the Milwaukee-Eight Softail replaced both the Softail and the Dyna on a new frame.

Why You Need One

A stock ECM is calibrated for the stock intake and exhaust. Open either one up and the mixture goes lean, which costs you the power you just paid for and runs the motor hotter than it should. Tuners come in two broad types: a piggyback that modifies the signal to the stock ECM, and a replacement ECM that takes over entirely. Auto-tune systems correct themselves as you ride using a wideband oxygen sensor; others need a map loaded or a dyno session.

More For Your Softail

All Softail Parts · Softail Fairings & Windshields · Softail Engines / Internal Components · Softail Grips · Softail Air Cleaners · Softail Transmission / Clutch · Softail Risers · Softail Brake Components · Softail Hardware

Or browse Tuners & Fuel Systems across every platform.