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ThunderMax®

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  1. Be the first to review this product

    $989.95
    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

    $7.80
    For exhaust systems without installed oxygen sensor bungs. Drill pipe and weld in. Sold each, two required.
  3. Be the first to review this product

    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

    $99.95
    Allows for off-motorcycle, bench-top programming of the ThunderMax® controller. Power supply includes power supply, switch box adapter, plug for ECM.
  5. Be the first to review this product

    $99.95
    ThunderMax® replacement oxygen sensors for all ThunderMax® EFI with AutoTune modules (no service parts available). Sold Individually. In compliance with ARB emissions laws, this product is not sold or shipped to California.
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