Big Gun 2003 Polaris Scrambler 500 Rev Box

If you are looking to swap out your stock CDI box, the Big Gun Over Rev Box is an affordable alternative to highly-priced OEM replacement boxes. It increases the overall RPM limit over the stock box and advances the timing curve.

• Easy direct plug in replacement to stock CDI box
• Increases overall RPM limit
• 6 Month Limited Warranty
• Advanced timing curve