Brisk's Premium EVO Spark Plugs feature patented laser technology and is intended for use with applications varying from stock OEM to performance street vehicles. The Premium EVO design offers great performance benefits of increased horsepower, faster acceleration, more responsive throttle, and better fuel efficiency. The auxiliary electrode at the tip of the spark plug provides a longer lifespan while still offering a multiple spark discharge. The unique firing end configuration better utilizes the fuel energy and helps eliminate combustion imperfections with new and old engines. The Premium EVO Spark Plug is the worlds first "Smart Spark Plug" which has a series of tapered ground electrodes surrounding the ceramic in 360°. This gives the ability to fire a series of 2 sparks per ignition impulse or emit one very large single spark. These two different function manners happen to depend on the environment within the combustion chamber at the given time.