ThunderMax ECM: The Ultimate Performance Tuning Solution for EFI Harley Davidson® Motorcycles

What is ThunderMax ECM?

ThunderMax ECM is an award-winning performance engine control module (ECM) designed for EFI-equipped Harley Davidson® motorcycles. This highly advanced, stand-alone tuning system is engineered to enhance the performance and rideability of your motorcycle, offering smoother engine operation and increased responsiveness. Using AutoTune technology combined with wide-band oxygen sensors, ThunderMax automatically adjusts your engine's air-fuel ratio to deliver unmatched precision and power on every ride.

Key Features of ThunderMax ECM:

• AutoTune Technology for automatic air-fuel ratio adjustments
• Wide-band oxygen sensors for precise fuel management
• Plug-and-play installation—no wire cutting or splicing
• Completely pre-assembled, ready to install
• Real-time engine optimization for a smoother ride

Easy Installation: Boost Performance in Minutes

ThunderMax ECM is designed for easy installation, making it a perfect upgrade for Harley Davidson® owners who want a performance boost without complicated modifications. The unit comes 100% assembled, allowing you to replace the stock ECM and oxygen sensors with minimal effort. Once installed, simply load a map (or use the basemap) and experience instant performance improvements.

Simple Steps to Install ThunderMax ECM:

1. Remove the stock ECM and oxygen sensors.
2. Install ThunderMax ECM and wide-band O2 sensors.
3. Load your preferred map or use the pre-programmed basemap.
4. Start riding with smoother acceleration and improved fuel efficiency.

AutoTune Technology: Automatic Fuel Management for Optimal Performance

ThunderMax ECM utilizes cutting-edge AutoTune technology that automatically adjusts your engine’s fuel management at every 256 RPM and every degree-and-a-half of throttle. This means the ThunderMax constantly fine-tunes your air-fuel ratio in real-time to ensure a smooth, consistent ride.

How ThunderMax AutoTune Works:

• Real-time adjustments to fuel management for seamless throttle response.
• Wide-band O2 sensors constantly monitor and adjust the air-fuel ratio, ensuring peak engine performance.
• Barometric sensor automatically compensates for changes in ambient air pressure, so your bike always runs optimally, regardless of weather or altitude.

With ThunderMax, you’ll experience smoother throttle control and a more powerful engine, without needing to manually adjust your settings.

Fully Adjustable with ThunderMax Tuning Software

While ThunderMax ECM works seamlessly with a pre-loaded basemap, it also offers full adjustability through ThunderMax tuning software. This gives you the flexibility to fine-tune every aspect of your bike’s engine performance, ensuring that it matches your specific riding style and preferences.

Benefits of Using ThunderMax Tuning Software:

• Advanced tuning options for precise control over fueling, throttle response, and more.
• Real-time adjustments allow you to adapt your bike’s performance on the fly.
• Customizable settings for optimal performance at various throttle positions and RPM ranges.

Why Choose ThunderMax ECM for Your Harley Davidson®?

ThunderMax ECM is the perfect solution for anyone looking to unlock their Harley Davidson® motorcycle’s full potential. Whether you’re a casual rider looking for improved rideability or a performance enthusiast wanting maximum control, ThunderMax offers seamless, real-time tuning that adapts to your riding needs.

Key Benefits of ThunderMax ECM:

• Smoother throttle response for a more responsive ride
• Automatic fuel management with no manual adjustments needed
• Simple installation with no splicing or wire cutting
• Customizable tuning with ThunderMax software
• Optimized engine performance for better power and fuel efficiency

Upgrade your Harley Davidson® with ThunderMax ECM today and experience the next level of performance tuning. Whether you’re cruising on the highway or navigating city streets, ThunderMax ensures your bike runs at peak performance with real-time optimization and automatic adjustments that make every ride smoother, more efficient, and more enjoyable.

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: 309-563