Big Gun Exhaust Rev Box CDI Unit for 2002-03 Yamaha YFM660 Raptor - 40-R05B 1996 Honda XR185 1986 Harley-Davidson FXRS Low Rider

1986 Harley-Davidson FXRS Low Rider

2014 Harley-Davidson SuperLow 1200 XLT

2011 Yamaha XVS950 V-Star Tourer

2007 Polaris UTV Ranger 500 EFI 4x4

1997 Kawasaki ZG1200B Voyager XII

Big Gun Exhaust Rev Box CDI Unit for 2002-03 Yamaha YFM660 Raptor - 40-R05B 1996 Honda XR185 1986 Harley-Davidson FXRS Low RiderBig 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.