Specifications
- Brand
- Big Gun
- Part #
- 40-R57J
- UPC
- 40-R57J

Big Gun Tfi Power Box Wolverine X4/R-Spec X2
$293.75
Big Gun Tfi Power Box for Yamaha Wolverine X4/R-Spec X2. Sharpens throttle response and enhances mid-range torque.
Key Features
- Fits Yamaha Wolverine X4 and R-Spec X2 models.
- Optimizes throttle mapping and fuel delivery for improved performance.
- Sharpens throttle response and enhances mid-range torque.
- Plug-in technology does not interfere with the stock ECU map.
- Integrated faceplate buttons allow for easy adjustment without a computer.
- Rugged construction with weather-resistant sealing for durability.
Product Details
The Big Gun TFI Power Box is a plug-and-play module designed to optimize your Yamaha Wolverine X4 or R-Spec X2's throttle mapping and fuel delivery. This unit is specifically recommended for EFI units that have an aftermarket exhaust system installed, helping to unlock more performance from your setup. It works by sharpening throttle response, smoothing out the power delivery, and giving you a noticeable boost in mid-range torque without compromising the reliability of your vehicle.
Installation is straightforward, as this module features plug-in technology that doesn't interfere with your stock ECU map. You can make adjustments on the fly using the integrated faceplate buttons, meaning you don't need a computer to fine-tune your EFI settings. Built with durability in mind, the TFI Power Box has rugged construction and weather-resistant sealing to handle tough riding conditions. This third-generation technology installs in minutes and is a solid option for improving your powersports vehicle's performance.
Specifications
- Brand
- Big Gun
- Manufacturer Part #
- 40-R57J
- UPC
- 40-R57J
Frequently Asked Questions
Big Gun Tfi Power Box Wolverine X4/R-Spec X2
