Silver Racing Spark Plug

The Brisk Silver Racing QR15LS spark plug is engineered for tuned and race engines, as well as vehicles using alternative fuels such as CNG, LPG, Propane, E85 blend, Alcohol, LNG, Race Fuels, and Nitro. Its design prioritizes performance with a smaller diameter silver core and an open spark hook type earth electrode, which excels at igniting high octane fuel mixtures. The use of silver in the core electrode is critical due to its excellent thermal and electrical conductivity. This allows for rapid heat dissipation, maintaining a lower spark plug temperature and generating a more powerful spark. The resulting stronger spark promotes a faster and more efficient flame front, contributing to a smoother operation at higher RPMs and reduced wear on ignition components. Key features include the 1.5 mm Silver Wire Centre Electrode, which ensures proper firing even in the presence of fouling, a common issue with standard plugs. It is also suitable for older vehicles with weaker ignition systems or excessive oil consumption, as well as high RPM race engines that have limited time for ignition coil saturation. This spark plug has a service life of 30,000 km (18,000 miles) or 50 hours of racing. It is listed as a popular replacement for KIA 2.4L engines from 2011 onwards and may require a special thin wall spark plug socket for installation.