High-performance R8 A3 A4 A8 Spark Plug for Audi RS5 A6 A5 Q5, engineered with precision for optimal ignition and fuel efficiency. Crafted from durable iridium alloy, ensuring long-lasting performance and resistance to extreme temperatures. Features advanced electrode design for faster combustion and reduced emissions. Direct OEM replacement (06H905601A), perfect for daily commutes, high-speed driving, and off-road conditions. Ultra-fine threading and ceramic insulator for secure fit and superior heat dissipation. Ideal for Audi enthusiasts seeking reliability and peak engine performance. Bulk order discounts available for auto repair shops and dealerships. Trusted by professionals for consistent quality and unmatched affordability.