Description

Precise ignition timing is critical in competitive racing, and the Racing Plug AR133 delivers the spark consistency you need to maintain peak power across high RPM ranges. The non-resistor design eliminates suppression circuitry, allowing maximum electrical energy to reach the combustion chamber—essential when every horsepower counts. If you’re tuning an engine for racing applications, this plug’s optimized geometry ensures reliable firing in demanding conditions where standard plugs fall short.