Copp double iridium spark plug is very good. Copco double iridium spark plug has many advantages, as follows: 1, improving power: sufficient ignition energy, stable ignition point, increasing output power and improving power performance; 2, steady state: good combustion, strong explosive force, increase the number of revolutions, so that the engine runs more calmly; 3, fast ignition: the ignition voltage is low, the anti-inflammatory effect of electricity is reduced, and the ignition is faster; 4. Fuel saving: Good combustion conditions and high instantaneous output power, which can achieve lower fuel consumption and ensure the same output power.