Enhance your BMW 140i, 240i, 340i, or 440i with NGK high-performance SILZKGR8B8S Laser Iridium spark plugs. Designed for optimal heat dissipation and consistent spark delivery, these spark plugs are ideal for both stock and modified engines (including E85 tuning) up to 500hp.Simple bolt-on instal..

This package includes 6 NGK SILZKGR8B8S Laser Iridium high-performance spark plugs, perfectly suited for standard and modified B58 engines, including those tuned for E85, with capabilities up to 500hp in the Toyota Supra A90. These spark plugs deliver outstanding heat transfer and spark stability...