Big Gun Exhaust Rev Box CDI Unit for 2004-07 Honda CRF450R - 40-R16 2003 Yamaha GP1200R 1985-86 Yamaha Bw200 Big Wheel

1985-86 Yamaha Bw200 Big Wheel F&R

2005 Arctic Cat F5 Firecat

2011 Aprilia Tuono 1000

2001-05 Yamaha YFM 660 R Raptor

no aftermarket option available

Big Gun Exhaust Rev Box CDI Unit for 2004-07 Honda CRF450R - 40-R16 2003 Yamaha GP1200R 1985-86 Yamaha Bw200 Big WheelBig 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.