BUILT FOR PERFORMANCE: Dinan Iridium Pro Spark Plugs are made from high-grade materials, engineered to enhance ignition and combustion, and provide smooth, consistent engine power for daily drivers, dedicated BMW racing enthusiasts, and everyone in between. A DIRECT-FIT UPGRADE: Upgrade your OEM spark plug on stock vehicles and on tuned engines with higher boost or upgraded power components, APR spark plugs are engineered to manage increased demands. Direct replacement for OEM stock parts 06K905601B/D/K/M and 06Q905601E/L. IRIDIUM BENEFITS: One of the strongest materials used for spark plugs, Iridium is used to withstand high temps, is less corrosive, requires less voltage to product a strong spark, and helps deliver reliable power. HIGH-TEMP DURABILITY (HEAT RANGE 9): Featuring a copper core construction paired with an iridium electrode, APR’s high heat dispersal “cold plugs” regulate combustion temperatures. This means consistent performance, even under extreme conditions. COMPATIBILITY: Compatible with Audi A3 A4 A5 A6 A7 A8 Q3 Q5 Q7 Q8 RS RS3 RS5 RS6 RS7 S3 S4 S5 S6 S7 S8 SQ5 SQ7 SQ8 TT TTRS TTS, VW Arteon Atlas Beetle Golf R GTI Jetta Passat Taos Tiguan, Bentley Bentayga Continental Flying Spur, Lamborghini Urus, Porsche Cayenne Macan Panamera MORE POWER WITH APR: Pair APR spark plugs with APR ignition coils for maximized performance in your MQB & MLB engines. Z1003100 works with Ignition Coil Part Numbers MS100192, MS100203, MS100204 MS100219, and MS100247. TRUSTED IN THE U.S. FOR OVER 25 YEARS: Founded in 1997, APR is Headquartered in Opelika, Alabama and has become a global leader in quality and reliable performance aftermarket products for Volkswagen, Audi, Porsche, and other vehicles.