Quote:Spark plug is a is an electrical device that fits into the cylinder head of some internal combustion engines and ignites compressed aerosol gasoline by means of an electric spark. Spark plugs have an insulated center electrode which is connected by a heavily insulated wire to an ignition coil or magneto circuit on the outside, forming, with a grounded terminal on the base of the plug, a spark gap inside the cylinder. Basic function of a spark-plug is ignition of the air and fuel mixture in the engine's combustion chamber at a precisely defined time. Brisk Tuning Spark Plugs comply with engine requirements and are designed to be used with prevailing types of operation of motor vehicles and the character of their users.