ThunderMax for 2012 - 2017 Harley Davidson Dyna® Models

What is ThunderMax ECM?

ThunderMax ECM is an award-winning performance engine control module designed specifically for EFI-equipped Harley Davidson® motorcycles. This advanced, stand-alone tuning system utilizes proprietary AutoTune technology and wide-band oxygen sensors to optimize your bike’s fuel management, improving performance, rideability, and fuel efficiency. ThunderMax provides a seamless, hassle-free upgrade that makes your Harley run at its peak performance without the need for complex adjustments.

Key Features of ThunderMax ECM:

• AutoTune Technology for automatic fuel adjustments
• Wide-band oxygen sensors for precise air-fuel ratio monitoring
• Easy installation with no wire cutting or splicing
• Pre-assembled and ready to install
• Real-time feedback for continuous engine optimization

Easy Installation: Plug-and-Play for Quick Setup

ThunderMax ECM is designed to be a plug-and-play upgrade for your EFI Harley Davidson®. It comes 100% pre-assembled, so you won’t need to cut or splice any wires. The installation process is simple and fast: just replace the factory ECM and oxygen sensors, load your map (or use the pre-loaded basemap), and you’re good to go!

Simple Installation Process:

1. Remove the factory ECM and oxygen sensors.
2. Install the ThunderMax ECM and wide-band O2 sensors.
3. Load the map you prefer, or use the pre-programmed basemap.
4. Start riding with smoother acceleration and enhanced power.

AutoTune Technology: Real-Time Fueling Adjustments

One of ThunderMax’s standout features is its AutoTune technology, which automatically adjusts the air-fuel ratio in real time, ensuring your bike always runs at optimal performance. ThunderMax automatically makes fueling adjustments at every 256 RPM and every degree-and-a-half of throttle to provide a smoother, more responsive engine.

How ThunderMax AutoTune Works:

• Wide-band O2 sensors constantly monitor the air-fuel ratio, providing continuous feedback to the ECM.
• Automatic fueling adjustments ensure consistent performance across all RPM ranges and throttle positions.
• Barometric sensor compensates for ambient air changes, so you never have to manually adjust for weather or altitude.

This dynamic fueling system means your Harley Davidson® will always deliver a smooth and powerful ride.

Fully Adjustable Tuning: Customize Your Ride

While ThunderMax ECM works perfectly with its pre-loaded basemap, it also offers complete adjustability with ThunderMax tuning software. This allows you to fine-tune your bike’s performance, giving you full control over everything from fueling to throttle response.

ThunderMax Tuning Options:

• ThunderMax tuning software allows for advanced adjustments to fueling, throttle response, and more.
• Pre-loaded basemap for quick setup, with automatic adjustments.
• Complete customization for riders who want precise control over their engine performance.

Why Choose ThunderMax ECM for Your Harley Davidson®?

ThunderMax ECM is the ideal choice for EFI Harley Davidson® owners who want to unlock their bike’s full potential. Whether you're looking for improved throttle response, better fuel efficiency, or enhanced overall performance, ThunderMax offers a plug-and-play solution that adapts to your needs.

Benefits of Upgrading to ThunderMax ECM:

• Improved throttle response and smoother engine performance.
• Automatic fuel adjustments that keep your bike running at its best.
• Easy, no-hassle installation with no need for wire cutting.
• Fully customizable tuning for a tailored riding experience.
• Real-time performance optimization for consistent engine management.

Experience Peak Performance with ThunderMax ECM

Upgrade your Harley Davidson® with ThunderMax ECM today and experience the next level of performance tuning. Whether you're cruising on the open road or navigating urban streets, ThunderMax ensures your bike runs at peak efficiency with automatic, real-time adjustments that adapt to changing conditions.

Installation Instructions

Emissions Notice

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 products.

Part Number: 309-382