Brisk Silver Racing Spark Plugs are the ultimate spark plug for your Mustang! These spark plugs are perfect for high compression, forced induction, and nitrous applications where maximum spark energy is required.
Unlike copper, platinum, or iridium designs, Brisk spark plugs feature a fine wire Silver center electrode, cut-back side ground electrode, and high dielectric strengh insulator for superior ignitability, low ignition voltage requirements, and high dielectric strength. What does that mean to you? It means you get a stronger, more intense spark for improved power and gas mileage!
Brisk Silver Racing spark plugs colder than stock plugs and recommended for supercharged, turbocharged, and nitrous applications. Put these Silver Spark plugs in today and begin to get the most out of your Mustang!
Note: There are two heat ranges offered for this spark plug. Part number XOR14YS1 is recommended for applications up to 450 flywheel horsepower. Part number XOR12YS1 is a colder heat range and recommended for application at 450 flywheel horsepower and higher.