Big Gun Exhaust Rev Box 9300-10000 - 40-R15 Tuner Hexagon shaped large diameter housings

Hexagon shaped large diameter housings for more volume

Rear - 101490

Part Number: 10R-A1000

Dust and mud cap

F Requires KFI Winch Mount #100575

Big Gun Exhaust Rev Box 9300-10000 - 40-R15 Tuner Hexagon shaped large diameter housingsREV BOX 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. Features Increases overall RPM limit Advanced timing curve Easy direct plug in replacement to stock CDI box 6 month Limited Warranty Fitment 1999 2004