Big Gun 04-12 Yamaha Raptor 350 Rev Box 1991-jeep-cherokee-base-esi4347867 With the ability to air

With the ability to air out 3

Git-Kit includes a host of electronic powertrain safeguards

but does have NPP valves

Fits 4" Exhaust Systems

Optimized tube lengths deliver true pulse control technology for improved flow and performance

Big Gun 04-12 Yamaha Raptor 350 Rev Box 1991-jeep-cherokee-base-esi4347867 With the ability to airIf you are looking to swap out your stock CDI box, the Big Gun Over 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. Easy direct plug in replacement to stock CDI box Increases overall RPM limit 6 Month Limited Warranty Advanced timing curve