Big Gun Exhaust Rev Box CDI Unit for 2000-07 Suzuki DR-Z400E/S - 40-R07 1993 Yamaha YFM350 FW Big Bear 2002 Yamaha YFM400N Big Bear

2002 Yamaha YFM400N Big Bear 2x4

2017 Can-Am Outlander 650 IRS

1999 Yamaha YFM350FW Big Bear 4x4 Upper

2017 KTM 125 Duke

Big Gun Exhaust Rev Box CDI Unit for 2000-07 Suzuki DR-Z400E/S - 40-R07 1993 Yamaha YFM350 FW Big Bear 2002 Yamaha YFM400N Big BearBig 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.