ACCEL HP Spark Plugs are made with a Copper core which is a better conductor than Platinum and Iridium. They deliver a stronger spark especially in high performance applications where high combustion pressures are present. Copper is much better at dissipating heat than other materials which lessens the chance of a misfire. ACCEL HP Spark Plugs are capable allowing you to open the gap exposing a larger flame kernel or close it if needed for high boost applications. All ACCEL HP Spark Plugs have machine rolled threads allowing for a more precise thread engagement and torque retention.

Product Features:

• Designed with a copper core for superior conductivity, ensuring a stronger and more reliable spark in high-performance applications.
• Exceptional heat dissipation reduces the risk of misfires, even under high combustion pressures.
• Gapable design allows for customization, enabling users to adjust the gap for optimal performance in high boost or specific engine setups.
• Machine-rolled threads provide precise thread engagement and improved torque retention for secure installation.
• Gasket (Flat) seat type ensures a tight and reliable seal for enhanced performance and durability.