Big Gun 14-21 Polaris SPORTSMAN 570 Power Box

The Big Gun TFI (Throttle and Fuel Injection) Power Box is designed to give your 2014-2021 Polaris Sportsman 570 an improved performance feel. It works by fine-tuning how your throttle input is translated and how fuel is delivered to the engine. This results in a sharper throttle response, smoother power delivery, and a noticeable increase in mid-range torque, making your ride more responsive without compromising the reliability of your stock ECU map.

Installation is straightforward thanks to its plug-and-play technology, meaning it connects directly into your existing EFI system without needing a computer for adjustments. The unit itself is built tough, with rugged construction and weather-resistant sealing to handle the demanding conditions you might encounter off-road. Integrated buttons on the faceplate make it easy to make adjustments on the fly, which is especially helpful if you've upgraded your exhaust system, as this box is highly recommended for those setups.