Big Gun Exhaust Rev Box CDI Unit for 2005-07 Polaris Predator 500 - 40-R10A 1988 Harley-Davidson 883 Hugger XLH Part Number: 21-140

Part Number: 21-140

2000 Sea-Doo GTX RFI

2-  M6 x 1

2000-06 Honda TRX350 Rancher ES

Big Gun Exhaust Rev Box CDI Unit for 2005-07 Polaris Predator 500 - 40-R10A 1988 Harley-Davidson 883 Hugger XLH Part Number: 21-140Big Gun Exhaust Rev Box CDI Unit Increases overall RPM limit Advanced timing curve Easy direct plug in replacement to stock CDI box 6 month Limited Warranty If you are looking to swap out your stock CDI box, the Big Gun 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. The Big Gun Rev Box is offered for various offroad MX and ATV models.