NGK 2 Step Colder Spark Plug - 97506

These plugs are suggested for most turbo BMW motors including the N20, N54, N55, S55, N63, N63TU, S63, and S63TU applications. Highly recommended for tuned N54s. Stock spark plugs won't cut it. Features & Benefits Often specified as original equipment, NGK Laser Iridium spark plugs are the best combination of performance and longevity. Fine wire Iridium center electrode Platinum pad at ground electrode for even wear in DIS ignition systems Engineered for specific vehicle applications Iridium tip is six (6) times harder than platinum These are compatible with the following BMW Engines: N20 N54 N55 S55 N63 N63TU S63 S63TU If you have any question email us: support@vehiclevirals.com