Big Gun Exhaust TFI Power Box EFI Tuner - 40-R50F 40-R54K and an exhaust port in

and an exhaust port in the rear of the helmet allows riders to stay cool

Part Number: 40-R51A

Part Number: 09-12582

Part Number: 09-42513

WARN:VRX 25 / VRX 25-S / VRX 35 / VRX 35-SMay require adding washers to shim up to fit due to size

Big Gun Exhaust TFI Power Box EFI Tuner - 40-R50F 40-R54K and an exhaust port inTFI 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