PROCOM Map Switching Performance CDI for the Yamaha YFM350 Warrior (96) increases the rev limit by 1,000 RPM over the stock rev limit. In addition, this unit offers 10 re-mapped timing curves which give a noticeable increase in horsepower and torque over the stock CDI. 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.