UNIQUE AND PATENTED DESIGN * Higher output and fuel energy utilization * Better throttle response and acceleration * Increase in fuel efficiency and lower emissions COMPLETELY NEW SPARK GAP SHAPE * Unrestricted and more spontaneous spread of the flame front * Hotter semi-surface spark discharge * Spark over occurs anywhere in almost 360degree perimeter where is optimal air-fuel composition, optimal ionization and the best ignition conditions * No need for INDEXING SPARK GAP IS EXTREMELY DEEP IN THE ENGINE’S COMBUSTION CHAMBER * Easy access of the air-fuel mixture to the spark * Better volumetric flow INTEGRATED GROUND ELECTRODE * Improved heat removal from active part of spark plug * Improved resistance to pre-ignition * Improved resistance to burn-off BRISK SILVER RACING SPARK PLUG MSRP: $11.99 MTR sale price: $10.99 Thank you for shopping Manic Tech Racing.