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ThunderMax®

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  1. As low as: $2,095.00

    Stop cussing that early EFI system, just replace it! Zipper’s has taken the popular ThunderMax® EFI electronics and merged it with a single-throat Delphi®-style throttle body (with the help of some specially made parts) and developed this full conversion kit for bikes with H-D's earliest Magnetti-Marelli EFI systems. This kit allows you to retain the original wiring harness and gas tank, while upgrading to similar components used in the highly durable and reliable Deplhi®-based bikes of 2002-2005. In most cases at least a 1 week lead time is necessary to get the kit built and shipped.

    This product is not for sale or use on pollution controlled vehicles.

  2. 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 single-throat Delphi®-style throttle body (with the help of some specially made parts) and developed this full conversion kit for bikes with H-D's earliest Magnetti-Marelli EFI systems. This kit allows you to retain the original wiring harness and gas tank, while upgrading to similar components used in the highly durable and reliable Deplhi®-based bikes of 2002-2005. In most cases at least a 1 week lead time is necessary to get the kit built and shipped.

    This product is not for sale or use on pollution controlled vehicles.

  3. 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.
  4. Be the first to review this product

    $33.95
    If your laptop or PC does not have a serial port, this inexpensive adapter will instantly add a serial port to your computer for communicating between ThunderMax® EFI modules and models listed below. Part #372-002
  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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