Big Gun 40-R54H (M4) TFI Power Box EFI Tuner for 2011-2014 Polaris RZR 800

TFI POWER BOX

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.

Features

• 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
• 2 Year Limited Warranty

Fitment

Year	Make	Model
2011-2014	Polaris	Ranger XP 800
2011-2014	Polaris	RZR 4 800
2011-2014	Polaris	RZR 800
2011-2014	Polaris	RZR S 800