The NGK CPR7EAIX9 Iridium IX ATV spark plug for Yamaha YFM700 Fgp Du Grizzly EPS Ducks Unlimited Edition 4X4 USA 2008-2010 ensures long-lasting performance and maximum ignition efficiency. Its ultra-thin iridium center electrode delivers powerful combustion and improved fuel economy. Designed for modern high-performance ATVs, it offers fast throttle response and excellent durability.