The ground electrode is cut-back from the center electrode to provide a gap, and its concave face ensures a constant gap to the center electrode. This design opens the spark face for better ignitability of the flame kernel, retains less heat, and transfers heat to the shell faster, reducing the risk of pre-ignition. Dyno testing has shown proven power gains, making this plug ideal for all aftermarket cylinder heads used in various racing venues, including oval and road racing. With a tapered seat type, it is engineered to handle intense conditions and deliver superior performance.

Product Features:

• Opens spark face for better ignitability of flame kernel
• Retains less heat, transfers heat to shell faster - reduces risk of pre-ignition
• Dyno testing has shown proven power gains
• Engineered for Intense Conditions: The tapered seat type is specifically designed to handle intense racing conditions and deliver superior performance.
• Ideal for Racing: Perfect for use in oval and road racing, ensuring reliable performance under demanding conditions.