NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug. NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. ATV - 1986-81 HON, 1988-82 KAW, 2006-85 YAM, M/C - 2006-96 APRILIA, 2005-97 GAS GAS, 1974-73 HARLEY-DAVIDSON, 2004-65 HON, 2006-81 HUSQ, 2005-73 KAW, 2006 KTM, 1996-77 MAICO, 2006-04 M-GUZZI, 2007-71 SUZ, 2006-71 YAM, SNOW - 1990-74 ARC CAT

RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Trivalent metal plating for superior anti-corrosion and anti-seizing properties
Outstanding acceleration, high fuel efficiency and durability
Fine iridium tip ensures durable and consistent spark

The NGK Iridium IX Spark Plug BR8EIX is engineered for enthusiasts seeking reliable high-performance spark plugs for a variety of vehicles. Featuring a fine iridium tip, this spark plug offers exceptional durability, with the iridium alloy’s extremely high melting point ensuring reliable operation under demanding conditions. Its tapered cut ground electrode enhances starting, idling, and throttle response, making it ideal for modified or high-performance applications. The trivalent metal plating provides superior anti-corrosion and anti-seizing properties, ensuring long-term performance and ease of installation. Designed to improve acceleration and fuel efficiency, the NGK Iridium IX is a recommended upgrade from standard nickel alloy plugs, delivering consistent sparks for optimal engine performance.
This spark plug fits a broad range of vehicles including classic Porsche 911 models from the late 1960s and early 1970s, Yamaha WR500 bikes from the early 1990s, and Suzuki GT380 and GT550 motorcycles from the 1970s. Its universal compatibility makes it a versatile choice for performance upgrades across various engines. Whether you're restoring a vintage vehicle, enhancing your motorcycle’s power, or upgrading a high-performance engine, this plug provides the durability and reliable ignition you need.
Constructed with a trivalent metal plating, the NGK Iridium IX ensures superior anti-corrosion and anti-seizing features, reducing maintenance and extending service intervals. Its outstanding ignitability and anti-fouling qualities help achieve smoother engine operation and more efficient fuel consumption, especially in modified or high-demand applications. This product is sold in a box of four, making it suitable for multiple vehicle projects or comprehensive engine rebuilds. Trust NGK's proven technology to deliver consistent performance and durability for your automotive or motorcycle needs.

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