Big Gun 05-07 Honda TRX 400EX Rev Box 2022-mini-cooper-base-esi1745475 aFe POWER differential covers bring

aFe POWER differential covers bring performance engineering to the protection of your axle's differential

Dust Holding Capacity

LINX Air Suspension Isolation Kit gives you the hardware to be able to control left and right air bags separately

304 Stainless Steel Head Flanges

Big Gun 05-07 Honda TRX 400EX Rev Box 2022-mini-cooper-base-esi1745475 aFe POWER differential covers bringIf 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