2017 BMW M4 Spark Plugs

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Designed and engineered in the USA, the Autolite Iridium XP spark plugs feature an iridium-enhanced 0.6mm finewire design and patented platinum sidewire technology to provide better overall durability and a more focused ignition for enhanced ignitability and performance. Features double Iridium-enhanced alloy technology center electrode for improved durability and wear resistance.

Bosch Double Platinum Spark Plugs are engineered to deliver both performance and long life, representing the best of OE spark plug technology. Bosch utilizes a platinum alloy firing pin on the center electrode and platinum alloy inlay in the ground electrode. This design reduces gap erosion, increases durability and performance life while meeting Original Equipment specifications for double platinum spark plugs. Save installation time since no gap adjustments are needed, as Bosch Double Platinum Spark Plugs are all pre-gapped from the factory and no anti-seize is required due to the nickel plating on the threads. Enjoy the peace of mind that comes with world-class engineering and the reliability of Bosch!

NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts. Laser Iridium High Ignitability spark plugs feature raised platinum pad or platinum fine wire tip on the ground electrode for even wear in distributorless ignition systems and improved spark performance.

Champion Double Platinum Power spark plugs combine a platinum fine-wire center electrode with platinum center and ground electrodes and exclusive Heat-Active alloy, ensuring powerful performance, longer service life and precise spark focus for optimal combustion. Champion your engine with spark plugs engineered to improve efficiency and keep your vehicle running at its best.