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Big Gun TFI Power Box

$239.99 - $289.99
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Product Description

The technology behind the Big Gun TFI 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 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 uses load based technology to monitor the demand on your motor and provide a fuel solution to reach optimum performance. This unit plugs directly into your factory wiring harness for easy installation.

  • Increases horsepower and improves throttle response.
  • Install in minutes.
  • Third generation technology.
  • No computer needed to adjust EFI.
  • Plug-in technology (does not interfere with stock ECU map).
  • Integrated faceplate buttons provide easy adjustment.
  • Highly recommended for any EFI unit with aftermarket exhaust.

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1-1 of 1
Overall
Location: hudson, ny
Amazing
what a differance in power i have a exaust and a intake and this product made the final touch if ur looking for power i totaly recomed this product..
1-1 of 1
Total Questions (1)
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1-1 of 1
Luke 8 days 1 hour ago
How do know what to set it on?
MotoSport Staff
6 days 23 hours ago Location: Portland, OR, USA
When this unit is plugged in it will still retain the stock EFI map. It is a piggyback unit that will allow you to add or remove fuel in the low, mid or high RPM range to compensate for additional flow characteristics when adding aftermarket intake and exhaust systems. You can select which RPM range you need to modify and then select how much fuel you would like to add or remove. You must have a general idea of tuning in order to set the amounts to the correct value for proper operation of your engine. Typically when adding an exhaust system, bikes will run lean so more than likely you will be using this to increase the fuel output of the injector to correct the lean condition.
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