ThunderMax XMS for 2018-2020 Softail®
Part Number: 309-589-X
ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles. The ThunderMax Exhaust Matched Series (XMS) was developed for Touring models with basic, "stage-1" upgrades including a hi-flow air cleaner and an exhaust system. Once installed, simply select a basemap from our software, and you are ready to ride!
ThunderMax XMS Benefits Include:
Simple, "Plug & Play" Installation
Increased Throttle Response & Motorcycle Rideability
Adjustable Idle Speed & Speedometer Calibration
Upgradeable To Full, Wide-Band Performance ThunderMax EFI System
100% Engineered & Made in the USA
3-Year Factory Limited Warranty
This product is intended for "RACE READY" vehicles only and is not for sale or use on vehicles otherwise subject to emission control requirements. In the state of California, this product should not be used on any vehicle that is registered for use on public roads. Please view the ThunderMax 50 application guide for "STREET APPROVED" & ARB compliant product.