Description
Plug-and-play full controller that allows for proper tuning of your EFI vehicle. Integrated faceplate buttons provide easy adjustment. Highly recommended for any EFI unit with aftermarket exhaust. Increases horsepower and throttle response. Installs in minutes. No computer needed to adjust EFI. Tfi Box
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Vehicle Fitment
Yamaha YXE850 Wolverine X2 R-Spec 2019
Yamaha YXF850 Wolverine X4 18-19
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