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 specifically designed to interface with wide-band oxygen sensors to automatically adjust a wide range of throttle positions and RPM ranges to deliver unmatched performance and drive-ability like no other product in the industry. ThunderMax® is made in the United States and 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!
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