The Brisk Premium LGS spark plugs are designed to maximize the benefit of high power factory ignition systems used on late model vehicles. The design of the Brisk Premium LGS spark plugs provides for maximum spark exposure, and unrestricted access of the air/fuel mixture. This contributes to faster and more complete burn, resulting in increase of mean cylinder pressure of each combustion cycle. In addition, faster rise in cylinder pressure helps eliminate the need for running excessive timing advance, which generates excessive heat and can strain the engine.
Brisk coldest spark plug is 08 (equiv. to NGK 10), and the hottest spark plug is 19 (equiv. to NGK 4). The actual sequence of most popular spark plug heat ranges is as follows: