Big Gun Exhaust Rev Box CDI Unit for 2006-08 Arctic Cat Prowler 650 - 40-R30A 2009 Aprilia Mojito 150 Custom 2009 KTM 400 EXC-F

2009 KTM 400 EXC-F

1978 Suzuki GS550

Part Number: W6443

Affordable starters are constructed with longer-life bearings than OEM

Kits are available for both 2-stroke and 4-stroke applications

Big Gun Exhaust Rev Box CDI Unit for 2006-08 Arctic Cat Prowler 650 - 40-R30A 2009 Aprilia Mojito 150 Custom 2009 KTM 400 EXC-FBig 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.