Proprietary Autotune technology: Automatically adjusts air-fuel ratio at every 256 RPM and 1.5 degrees of throttle for optimal engine performance
Wideband oxygen sensors: Provide real-time feedback for precise air-fuel ratio control
No wire cutting or splicing required: Enables straightforward, factory-equalized installation
Built-in barometric sensor: Compensates for altitude and ambient air changes without manual adjustments
Fully adjustable tuning: Allows use of tuning software or preloaded basemaps for customized performance
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ThunderMax Tuner for 2012-2015 M8 Softail Harley Davidson® Motorcycles
What is ThunderMax ECM? ThunderMax ECM is an award-winning, high-performance engine control module (ECM) specifically designed for EFI-equipped Harley Davidson® motorcycles. This advanced stand-alone tuning system utilizes AutoTune technology and wide-band oxygen sens