High-Performance Iridium Spark Plug SP450 for Precision Engine Systems
Premium iridium alloy tip ensures ultra-fine electrode durability and consistent spark efficiency, reducing misfires and fuel consumption. Precision laser-welded construction enhances heat resistance (up to 1,600°C) and extends service life by 40% over standard plugs. Optimized for American car models, ideal for high-compression engines, turbocharged systems, and daily commutes. The tapered cut ground electrode minimizes voltage loss, boosting acceleration and cold-start reliability. Direct OEM replacement (compatible with ASF42C) with anti-corrosion nickel plating. Trusted by mechanics for smooth idling and reduced emissions. Bulk orders available at unbeatable wholesale pricing.