Big Gun 12-19 Polaris RZR 570 Power Box

If you've added an aftermarket exhaust to your Polaris RZR 570, you'll want to make sure its EFI system is optimized to take full advantage of the improved airflow. The Big Gun TFI Power Box is designed to do just that, making a noticeable difference in how your RZR performs. It works by fine-tuning the throttle mapping and fuel delivery, which helps to sharpen your throttle response and smooth out the power delivery, especially in the mid-range where you often need it most.

This unit is a plug-and-play module, meaning it installs easily without needing to remap your stock ECU. You can make adjustments on the fly using the integrated buttons on the faceplate, and you won't need a computer to do it. Big Gun built this Power Box with durability in mind, using rugged construction and weather-resistant sealing to handle the tough conditions your RZR might encounter. It's a well-built piece that's highly recommended for EFI units paired with aftermarket exhaust systems.