- Four high-quality aftermarket replacement spark plugs ensure optimal engine performance and reliability. - Compatible with models: 458, J19LM, W14LMU, and B4LM. - OEM numbers are provided for your convenience; please confirm compatibility with your vehicle before purchase. - Note: Some product images are for illustration purposes only and may not represent the actual item. Key Benefits: - Enhanced Engine Performance: These spark plugs are designed to improve ignition efficiency, leading to better fuel economy and overall engine performance. - Reliable Starts: Experience easier starting and smoother engine operation, eliminating misfires and rough idling. - Durability: Constructed from high-quality materials to withstand extreme temperatures and pressures, ensuring longevity and consistent performance. Use Scenarios: - Perfect for DIY mechanics looking to replace worn or faulty spark plugs to restore engine efficiency in everyday vehicles. - Ideal for car enthusiasts wanting to upgrade ignition components for better performance in racing or high-demand driving conditions. - Great for routine vehicle maintenance, ensuring your engine runs smoothly and efficiently over time. Ensure a reliable connection and peak performance with these replacement spark plugs while maintaining compatibility with your specific engine models.