Big Gun Exhaust Rev Box CDI Unit for 2005 Honda CRF250R - 40-R24 2017 Suzuki GSX-R1000 2017 Harley-Davidson Sportster Roadster -

2017 Harley-Davidson Sportster Roadster - XL 1200CX

1990 Kawasaki Street Bike EN500 Vulcan

2009 Kawasaki KVF650 I Brute force

2017 Arctic Cat Wildcat X 1000 LTD EPS

2006 Harley-Davidson Sportster Low - XL 1200L

Big Gun Exhaust Rev Box CDI Unit for 2005 Honda CRF250R - 40-R24 2017 Suzuki GSX-R1000 2017 Harley-Davidson Sportster Roadster -Big 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.