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- Select Brand - AVON BRIDGESTONE DUNLOP IRC METZELER MICHELIN SHINKO VEE RUBBER

ThunderMax is an industry award winning, performance ECM designed specifically for EFI equipped Harley Davidson® motorcycles.
This highly advanced, stand-alone tuning system utilizes proprietary AutoTune technology with wide-band oxygen sensors to deliver unmatched performance and rideability.
ThunderMax comes 100% assembled, ready to install with no wire-cutting or splicing required. Simply replace the factory ECM and oxygen sensors, load a map, and enjoy your new ride!

ThunderMax Benefits Include:
Easy to Install & Simple to Use
Increased Engine Performance & Motorcycle Rideability
Cooler, Smoother Running Engine
Adjustable Idle Speed & Rev Limit Control
No Dyno Required - Automatically Tunes for Riding Style & Riding Conditions
Never Outgrow It - Easily Accomodates Bike Changes (Pipes, Cams, and More)
100% Engineered & Made in the USA
3-Year Factory Limited Warranty

ThunderMax System Includes:
ThunderMax Performance Engine Control Module (ECM)
Two (2) Wide-Band Bosch 5-Wire Oxygen Sensors (18mm) with AutoTune Connection Harness*
USB Communication Cable
TMax Tuner Software Disc
ThunderMax Quick Start Easy Install and Printable Comprehensive User’s Manual


ThunderMax PN#309-588 Applications:
• 2017 - 2020 Touring® Models - Air & Twin Cooled (Throttle-by-Wire)
• 2017 - 2018 Touring® Trike Models - Air & Twin Cooled (Throttle-by-Wire)

ThunderMax PN#309-562 Applications:
• 2014 - 2016 Touring® Models - Air & Twin Cooled (Throttle-by-Wire)
• 2014 - 2016 Touring® Trike Models - Air & Twin Cooled (Throttle-by-Wire)

ThunderMax PN#309-362 Applications:
• 2008 - 2013 Touring® Models (Throttle-by-Wire)
• 2009 - 2013 Trike Models (Throttle-by-Wire)

ThunderMax PN#309-460 Applications:
2001 - 2010 Softail® Models
2002 - 2007 Touring® Models
2007 - 2009 Sportster® Models

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