Spark Plug by ACCEL - 578C2-4

Accel HP copper Two heat ranges colder spark plug designed with the help of Copper core which is a better conductor than Platinum and Iridium, which deliver a stronger spark especially in high-performance applications where high combustion pressures are present. Also Copper is much better at dissipating heat than other materials which lessen the chance of a misfire. ACCEL HP Spark Plugs have custom gapping which allows 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.

• Accel HP copper Two heat ranges colder spark plug features Copper core which is a better conductor than Iridium or Platinum plugs
• Heat dissipating capacity of Copper is much better than other materials
• "C" - Cut Design allows the spark kernel for a better burn
• Machine rolled threads are used for precise thread engagement
• ACCEL HP Copper Core spark plugs deliver for both whether using on the street or the strip
• Two heat ranges colder spark plug are two steps colder than stock