We have updated our Privacy Policy. Please click here to review the updates. Accept

Looking for something else?


Big Gun TFI Power Box Yamaha Wolverine X2 R-Spec / X4 2018-2019

Fast Lane
Ships Free to Cycle Gear Stores!

Ship to an Address:
Please select a to view availability.


Pick-up in Store:
Cycle Gear Springfield Check Nearby Stores

The Cycle Gear Difference
  • 30-Day Best Price Guaranteed
  • Free Shipping Over $49
  • No-Hassle Returns View Details
This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

Big Gun TFI Power Box Yamaha Wolverine X2 R-Spec / X4

Any aftermarket exhaust allows an increased amount of airflow through your engine by reducing restriction. Big Gun offers this plug-and-play TFI Power Box fuel controller to correctly tune your machine after installing one of their exhausts, adding more fuel to maintain good ratios throughout the rpm range. Protecting your engine from running lean helps keep temperatures down and helps maintain smooth stock-like drivability. Integrated faceplate buttons allow for easy adjustments without the use of an external device.


  • Increases horsepower and throttle response
  • Includes pre-set map to compensate for Big Gun exhausts
  • Plug-and-play harnesses plug directly in line with your stock fuel injector harnesses using factory-style terminals
  • No extra computer, phone or tablet required to make adjustments
  • Installs in minutes
Read More

This product is vehicle specific. Click here to select your vehicle to ensure fitment.

This Product Fits:

Wolverine X2 R-Spec 2019
Wolverine X4 2018, 2019
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Big Gun TFI Power Box Yamaha Wolverine X2 R-Spec / X4 2018-2019 Item # 10210144 Store SKU Manufacturer Product # 40-R57J Availability In Stock: Ships in 1-2 business days
Join now & get rewarded!

Get free 2-day shipping and 5% cash back on your next order.

Already enrolled in RPM? Link your existing membership here.