Big Gun 99-04 Honda TRX 400EX Rev Box

If 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.

This Part Fits:

Year	Make	Model	Submodel
1999-2004	Honda	TRX400EX Sportrax	Base