Setting
Currency
0 Item(s)

You have no items in your shopping cart.

ThunderMax®

  1. 01
  2. 02
  3. 03
  4. 04
  5. 05
  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

    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®.
  3. As low as: $2,425.00

    Stop cussing that early EFI system, just replace it! Zipper’s has taken the popular ThunderMax®EFI electronics and merged it with a Delphi®-style single-throat throttle body (with the help of some specially made parts) and developed this conversion kit for bikes with the earlier systems. This kit allows you to retain the original wiring harness and gas tank, while upgrading to the same components used in Zipper’s popular high performance Muscle series EFI engine kits for Delphi®-equipped bikes. 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: $1,909.00

    Got your eye on a Screamin’ Eagle® or 120R H-D® engine? Zipper's ZIP KITS powered by ThunderMax® are the quick and easy way to simplify installation and power tuning on an EFI equipped big engine! In compliance with ARB emissions laws, this product is not sold or shipped to California.
  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.
  1. 01
  2. 02
  3. 03
  4. 04
  5. 05
Loading...
Loading...