NGK RACING SPARK PLUG - R0409B -10

The Racing Spark Plug Intended for Competition Should Be Able To Resist to Extreme Conditions:

• Repeated acceleration and deceleration with power
• Intensive Engine Operating On High Rev.

Extreme Condition Inside Combustion Chamber Such As Temperature Variation, Pressure, Vibration and Turbulences Cannot Be Sustained by a Standard Spark Plug.