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Big Gun 18-19 Polaris RZR RS1 Power Box
Regular price
$402.99
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The Big Guns TFI (Throttle and Fuel Injection) Power Box delivers an effortless performance boost by optimizing throttle mapping and fuel delivery. Simple to install and tuned for broad compatibility, this plug-and-play module sharpens throttle response, smooths power delivery, and enhances mid-range torque, all without sacrificing reliability. Designed with durability in mind, the TFI Power Box features rugged construction and weather-resistant sealing to withstand tough conditions.
- Highly recommended for any EFI unit with aftermarket exhaust
- Plug-in technology (Does not interfere with stock ECU map)
- Integrated faceplate buttons provide easy adjustment
- Increases horsepower and throttle response
- No computer needed to adjust EFI
- Third generation technology
- 1 Year Limited Warranty
- Installs in minutes
Regular price
$402.99
The Big Guns TFI (Throttle and Fuel Injection) Power Box delivers an effortless performance boost by optimizing throttle mapping and fuel delivery. Simple to install and tuned for broad compatibility, this plug-and-play module sharpens throttle response, smooths power delivery, and enhances mid-range torque, all without sacrificing reliability. Designed with durability in mind, the TFI Power Box features rugged construction and weather-resistant sealing to withstand tough conditions.
- Highly recommended for any EFI unit with aftermarket exhaust
- Plug-in technology (Does not interfere with stock ECU map)
- Integrated faceplate buttons provide easy adjustment
- Increases horsepower and throttle response
- No computer needed to adjust EFI
- Third generation technology
- 1 Year Limited Warranty
- Installs in minutes
FAQ
Most orders ship within 1–2 business days. Engines and oversized items may require additional handling time. You’ll receive tracking as soon as your order leaves our warehouse.
If a product is backordered, we’ll notify you right away with an estimated restock date. You can choose to wait, swap, or cancel.
Once your order ships, you’ll receive an email with tracking information. You can also log into your account anytime to check order status.
We’ve been in your shoes. From first bolt-ons to full custom builds, our crew can guide you the right way.
Every product we sell is chosen with one goal in mind: helping you build faster, stronger, and more reliable machines.
We team up with the best brands so you can build with confidence.