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 and retains less heat, transferring it to the shell faster to reduce the risk of pre-ignition. Dyno testing has shown proven power gains, making it ideal for all aftermarket cylinder heads used in various racing venues, including oval and road racing. The cut-back ground electrode evolved from the practice of grinding back the side electrode, and it features a tapered seat type for optimal 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
• Cut-back ground electrode evolved from practice of grinding back the side electrode
• Optimal Performance: Features a tapered seat type, ensuring optimal performance in intense racing conditions.
• Durable Design: Engineered to handle intense conditions, this spark plug is perfect for both oval and road racing applications.