Big Gun Exhaust Rev Box CDI Unit for 2005-07 Suzuki RM-Z450 - 40-R12A 2010 Arctic-Cat 550 4x4 Does not fit: Stock risers

Does not fit: Stock risers and handlebar/gauge mount clamp on 883C/1200C models

2007 Ski-Doo MX-Z 800 HO Adrenaline

1997 Polaris Indy XCR 600 SE

Fits: 2006-08 Kawasaki KX450F

Big Gun Exhaust Rev Box CDI Unit for 2005-07 Suzuki RM-Z450 - 40-R12A 2010 Arctic-Cat 550 4x4 Does not fit: Stock risersBig 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.