Upgrade your vehicle's performance with the NGK Laser Iridium Spark Plug 90992, designed to provide exceptional ignitability and longevity. These spark plugs are engineered to meet the highest standards, ensuring that your engine runs smoothly and efficiently. The iridium-tipped center electrode is six times harder than platinum, enhancing durability and performance for a longer lifespan. The NGK Laser Iridium spark plugs feature a high-grade pure alumina ceramic insulator and a 98 percent pure copper core, which helps prevent overheating and guarantees reliable starts in all conditions. With advanced tip technology, these plugs ensure even wear and optimal spark performance, making them ideal for your Honda CRF1000A and CRF1000D. Experience the difference with NGK, a trusted name in the automotive industry. <b>Features:</b> * Iridium-tipped center electrode: Six times harder than platinum for enhanced durability.: Iridium-tipped center electrode: Six times harder than platinum for enhanced durability. * High-grade pure alumina ceramic: Prevents overheating and ensures reliable starts.: High-grade pure alumina ceramic: Prevents overheating and ensures reliable starts. * 98 percent pure copper core: Provides efficient performance and longevity.: 98 percent pure copper core: Provides efficient performance and longevity. * Advanced spark plug tip technology: Ensures even wear and optimal spark performance.: Advanced spark plug tip technology: Ensures even wear and optimal spark performance.