Big Gun TFI Power Box

• Product Details

  Please double check your selection prior to placing your order, as this item is NOT eligible for return. Please see our full list of return restrictions.

  The technology behind the Big Gun TFI Power Box is that it functions like a carburetor. It takes the knowledge and experience that many riders have and converts it to a fuel injection interface. The TFI interface makes it easy to tune for different modifications. The TFI Power Box is to be used on EFI ATVs, UTVs and dirt bikes that have performance enhancements which require more fuel to run correctly; such as pipes, heads and even big bore kits. With its patented technology, this box does not default computers or trip engine lights. The TFI Power Box uses load based technology to monitor the demand on your engine and provide a fuel solution to reach optimum performance. This unit plugs directly into your factory wiring harness for easy installation.

  • Increases horsepower.
  • Improves throttle response.
  • Installs in minutes.
  • New third-generation technology.
  • No computer needed to adjust EFI.
  • Plug-n-play technology (does not interfere with stock ECU map).
  • Integrated faceplate buttons provide for easy adjustments.
  • Adjust on the fly.
  • Highly recommended for any EFI bike with an aftermarket exhaust.
  • One-year manufacturer's warranty.

  Notes:

  This product is not ARB / CARB compliant and CANNOT be sold in the state of California. Image is for display purposes ONLY; actual product will vary with fitment.

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• Big Gun TFI Power Box Review

• 41 Questions about the Big Gun TFI Power Box

• Fitment

• # Part Numbers for the Big Gun TFI Power Box

  Product Variant	Manufacturer Part #
  Big Gun TFI Power Box	40-R54S, 40-R52A, 40-R51H, 40-R54K, 40-R50E, 40-R57E, 40-R54U, 40-R54C, 40-R53C, 40-R54T, 40-R52B, 40-R57F, 40-R51F, 40-R51A, 40-R52D, 40-R54P, 40-R56B, 40-R53D, 40-R56A, 40-R52H, 40-R50G, 40-R63, 40-R51B, 40-R50, 40-R50A, 40-R52C, 40-R52G, 40-R55A, 40-R57D, 40-R51J, 40-R50F, 40-R51I, 40-R57G, 40-R54M, 40-R51G, 40-R51D, 40-R54I, 40-R52E, 40-R57A, 40-R54E, 40-R57I, 40-R54N, 40-R52I, 40-R53A, 40-R52F, 40-R50C, 40-R56C, 40-R58, 40-R54L, 40-R51E, 40-R57H, 40-R51C, 40-R50H, 40-R54B, 40-R54R, 40-R62, 40-R57B, 40-R54O, 40-R54J, 40-R54H, 40-R54V, 40-R50D, 40-R54G, 40-R54Q, 40-R54D, 40-R53, 40-R57C
  Gen4	40-R91B, 40-R91A, 40-R94A

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