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Big Gun TFI Power Box Honda Rancher 420 IRS 2014


Big Gun Exhaust

Model #40-R52B

Shopper Award
When installing an aftermarket exhaust, proper tuning is a must. The Big Gun Power Box is a plug-and-play fuel controller that allows you to properly tune your fuel injected motorcycle, ATV or Side x Side in just minutes. Installing a Power Box allows you to get the most out of your aftermarket exhaust and increases throttle response. A Power Box helps cure the lean issue that is run into when installing a higher-flowing exhaust and comes pre-programmed with a middle-of-the-road setting already into it, making it easy to install and go ride.

  • Increases horsepower and throttle response
  • Installs 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
  • 1 Year Limited Warranty
  • This product is not ARB / CARB compliant and cannot be sold in the state of California
Proposition 65

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