Big Gun 15-19 Honda RUBICON 500 Power Box

The Big Gun TFI Power Box uses third-generation technology to make real changes to how your 2015-2019 Honda Rubicon 500 runs. It works by adjusting the throttle mapping and fuel delivery, which helps make the power come on smoother and gives you a noticeable boost in the mid-range torque. This is a plug-and-play unit, meaning it connects directly into your EFI system without needing to reprogram the stock ECU map, so it's designed not to mess with your vehicle's reliability.

You can easily make adjustments on the fly using the integrated buttons on the faceplate, and you won't need a computer to tune the EFI. It's built tough with rugged construction and weather-resistant sealing, so it can handle the kind of conditions you'd expect on an ATV. This power box is especially recommended if you've already upgraded your exhaust system, as it helps optimize the performance gains from that modification.