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ThunderMax®

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  1. 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.
  2. Be the first to review this product

    $19.95
    This kit includes components required to make repairs to a damaged AutoTune wire harness and connector plug. Included is a replacement connector, connector terminals, replacement wires with terminated ends and shrink tubing. Use to repair a damaged, but functioning, AutoTune module harness.
  3. 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.
  4. Be the first to review this product

    As low as: $12.50

    Replacement ThunderMax® communication cables in standard or extended lengths. See long description for application information.
  5. 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.
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