ThunderMax ECM with Integral Auto Tune System

ThunderMax ECM with Integral Auto Tune System

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, and 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!

Every degree and a half of throttle, every 256 RPM, there is a fueling point that is automatically adjusted. That means more control and a smoother-running engine. With the built-in barometric sensor, you never have to think about ambient air changes. Wideband O2 sensors constantly read the air-fuel ratio and give live, real-time feedback to the ECM. That means, no “accepting” the changes made to the map, once you key off the changes are written. The Thundermax ECM is fully adjustable with our Thundermax tuning software or can be used just by loading a base map. The choice is yours.

• Thundermax ECM with auto-tune module mounts conveniently in place of the factory ECM and plugs into the existing harness
• Utilizes wide-band O2 sensors and works as a closed-loop control system to continuously self-adjust and properly tune the motorcycle’s air/fuel ratio for all riding conditions
• Easy installation: Replace the factory ECM, install new O2 sensors and harness, load the correct map for your bike, and ride
• Includes Thundermax ECM with auto-tune module, plug-in harness and two wide-band sensors, TMax software, and communication USB cable, quick-start easy install, and comprehensive user manual, technical support, and free software and updates
• Hundreds of maps are available to download for your bike (Based on the model, engine size, exhaust system air cleaner, pistons, cams, etc.) Load the MAP of your choice and the integral auto-tune will do the rest
• Improves throttle response, exhaust sound, and driveability
• Does not require dyno tuning
• The rider can adjust idle speed, rev limit, and speedometer calibration
• Adjustable front and rear cylinder AFR MAPs, ignition timing (Spark) MAPs, and startup MAPs
• Works with all popular exhaust systems and is compatible with high-performance camshafts
• Supports turbo, nitrous, and supercharger applications
• The software program allows live monitoring, recording, and examination of diagnostic codes and data logs including the number of starts, engine temperature, and RPM operation
• New maps, software, firmware updates, map analysis, and tech support are available online at no charge
• 3-Year limited warranty!
• Made in the U.S.A..

Because of possible clearance issues, some aftermarket exhaust systems may require modifications or relocation of their o2 sensor port bungs
*1* Not for use on models with traction control
*2* Will require the use of an exhaust system with 18 mm sensor bungs or head pipes that must be modified to accept 18 mm sensors

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” and CARB-compliant products. ***THUNDERMAX EMISSIONS NOTICE***