Serious about your engine's performance? These ACCEL U-Groove spark plugs are what you need for that extra power boost. That patented U-shaped ground electrode isn't just for looks - it creates a double wide, hotter spark that really ignites high compression engines effectively. The sintered alumina insulator stops flashover and overheating issues, while the pure copper/nickel alloy electrode gives you a broad heat range that works in various conditions. What does this mean for your ride? You get significantly more power when you're pushing those high RPMs, instant throttle response when you hit the gas, and believe it or not, better fuel economy too. They reduce misfiring and minimize flame dissipation so your engine runs smoother and more efficiently. These are sold in pairs and fit 1200cc engines with OEM numbers 3-4. Perfect for anyone looking to upgrade from standard plugs to something that delivers real performance gains. Backed by a 90-day warranty so you can install with confidence!