ThunderMax ECM with Auto-Tune for '23.5-Up Gen 2 Harley Davidson Touring Center Cooled Models for both VVT and Non VVT Engines
*Fitment for 2023-Up Roadking®,2023-2024 Ultra®, and 2023-Up Trikes® see part number 309-591
New rider programming mode feature! Store up to 5 base maps and access them plus the ability to change idle speed, speedometer calibration and clear auto-tuned adjustments all without linking to a computer
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!
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 basemap. The choice is yours.
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.
Features
- ThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness
- Utilizes wide-band oxygen 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 oxygen 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’s Manual, technical support and free software and updates
- Hundreds of maps available to download for your bike (based on 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
- Rider can adjust idle speed, rev limit and speedometer calibration
- Adjustable front and rear cylinder AFR maps, ignition timing (spark) maps, and startup map
- Works with all popular exhaust systems and is compatible with high-performance camshafts
- Supports turbo, nitrous and supercharger applications
- Software program allows live monitoring, recording and examination of diagnostic codes and datalogs including number of starts, engine temperature and rpm operation
- New maps, software, firmware updates, map analysis and tech support available online at no charge
- Made in the USA
- Because of possible clearance issues, some aftermarket exhaust systems may require modifications or relocation of their O2 sensor port bungs.
- Does not require dyno tuning.
DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE.
