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ThunderMax®

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  1. Be the first to review this product

    $34.95
    The ThunderMax® AutoTune gets its power and communicates to the ECM through the motorcycle’s factory data port plug. This ‘Y’ harness allows the AutoTune module to be plugged in with an additional plug remaining open for other tasks. Not applicable for 2008-up Touring, 2011-Later Softail®, and 2012-Later Dyna® models.
  2. Starting at $0.00
    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 specificly designed to interface with wide-band oxygen sensors to automaticly adjust a wide range throttle positions and RPM ranges to deliver unmatched performance and driveability like no other product in the industry. ThunderMax® is made in the USA 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! In compliance with ARB emissions laws, this product is not sold or shipped to California.
  3. Be the first to review this product

    $99.95
    Allows for off-motorcycle, bench-top programming of the ThunderMax® controller. Power supply includes power supply, switch box adapter, plug for ECM.
  4. Starting at $0.00
    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 specificly designed to interface with wide-band oxygen sensors to automaticly adjust a wide range throttle positions and RPM ranges to deliver unmatched performance and driveability like no other product in the industry. ThunderMax® is made in the USA 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! In compliance with ARB emissions laws, this product is not sold or shipped to California.
  5. Be the first to review this product

    As low as: $18.95

    Allows a second USB port for the communication cable connection to the ThunderMax® Gen III (#309-460) models. It is installed to the bike’s wiring harness at the ECM connector; handy for motorcycle models with tight clearances around the ECM. Will not work on ThunderMax® TBW,Gen I & II cable-model ThunderMax®,’11-up cable Softails®, ’12-up Dyna®/Softail® models or 2014-up Sportster® systems. Included with 309-485 model ThunderMax®.
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