ThunderMax ECM with Auto Tune System for 2024-2025 Harley Touring

Product Description

ThunderMax 2023.5-Up Touring® Center-Cooled ECU Kit (VVT or Non-VVT)

Unlock premium performance for your 2023.5-up Touring® model with the ThunderMax ECU Kit. Whether you’re running a VVT or non-VVT center-cooled engine, this kit offers a fully engineered replacement ECM that brings real-time tuning, dialed control, and plug-and-play installation.

Inside the kit you’ll find everything you need for one clean install: the pre-programmed ECM, wide-band oxygen sensors, plug-in harness, AutoTune module, USB cable, and all the parts required to get your bike running at its best without wire-cutting or splicing. At its core, ThunderMax uses proprietary AutoTune technology to adjust air/fuel ratios every 1.5° of throttle and 256 RPM. Its closed-loop control and built-in barometric sensor let it react to altitude and ambient changes automatically—set it up and go.

With features like timing correction (knock control), full factory feature support (ride modes, cruise, navigation, Wi-Fi), and data-logging capability, this electronics package is built for riders who want real-world performance, tune flexibility, and a complete system in one box. Ideal for street rides, touring loads, high-performance cams or boosted setups, the ThunderMax kit gets your bike’s brain upgraded for what comes next.

Fits: 2023.5-2025 Center Cooled Touring models 

• Fits 2023.5-up Harley-Davidson Touring® center-cooled models (VVT & non-VVT)
• ECM fully assembled with wide-band O₂ sensors and plug-in wiring harness
• AutoTune real-time air/fuel tuning and barometric sensor built in
• Supports factory ride modes, dash, cruise control & data logging
• Ready for performance builds: supports cams, turbo, nitrous, supercharger
• No cutting or splicing required — install is plug-and-play

Whether you’re planning a loaded tour, dragging through canyon turns, or building a performance-charged bagger, the ThunderMax ECU Kit gives you the foundation to make your build smoother, stronger and smarter. Follow install instructions, load the correct baseline map, and enjoy years of refined, confident throttle response and power delivery.

*DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES