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Big Gun TFI Power Box for 2014-16 Arctic Cat Wildcat 700 Models - 40-R50G 2017 Polaris Sportsman 1000 XP 2011 Arctic-Cat CFR 1000Big Gun Exhaust TFI Power Box 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 When installing an aftermarket exhaust, proper tuning is a must. The Big Gun Power Box is a plug and