This PROCOM Performance CDI for the Honda 400EX (99-04) increases the rev limit by 1,000 RPM over the stock rev limit.
This CDI box is a direct plug in replacement CDI. Simply locate and remove the stock CDI, and plug the Procom unit directly into the wiring harness, no modification needed. Suitable for stock and modified machines.
We cover all our PROCOM Performance CDIs with a full one year warranty.
