ProCom Performance CDIPart Number: PE-C-AY660G-A Performance CDI replaces OEM unit Timing curve optimized for maximum performance Modern circuitry allows for better spark energy Simple plug in performance upgrade Comes with a Full One Year Warranty PROCOM Performance CDI for the Yamaha Grizzly 660 (02-08) increases rev limit 1,000 RPM over the stock (from stock CDI 7,600RPM to Procom CDI 8,600RPM). In addition, this unit offers a re-mapped timing curve which yields a noticeable increase to 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. Fits: 2002-08 Yamaha YFM660 Grizzly models Items Included Fitments 2002 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4 2003 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4 2004 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4 2005 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4 2006 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4 2007 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4 2008 Yamaha YFM660 Grizzly 660 LIM / Wetland / Hunter 4X4