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Iridium Is 6x Harder & 8x Stronger Than Platinum:
Iridium is an extremely durable material that extends the spark plug lifetime by reducing spark plug gap erosion.

Power Focus Technology:
The shell of the spark plug has a unique design, utilizing a “tapered shell reflector” around the center electrode, which helps direct air/fuel mixture during the compression stroke directly to the spark. This special “tapered shell reflector” also helps direct the propagating flame front to the center of the combustion chamber.

Low Ignition Voltage Requirements Make For Easier Starts:
Spark Plug Lower Required Supplied Ignition Voltage is achieved by utilizing an optimized diameter of the spark plug center electrode, along with sharp edges of the cut back ground electrode. This spark plug design is best in applications where long lifespan and performance are desired, and also in applications where the stock ignition system is pushed to the limit due to the performance upgrades and increased engine output, which helps to eliminate the need to upgrade the ignition coils.

Spark Plug Lower Required Supplied Ignition Voltage is also beneficial for extending lifespan of the ignition system, ignition coil (ignition coils), easier cold starts and operation under partially fouled spark plug condition caused by prolonged idling, A/F management problems and/or oil consumption.

Optimized Center Electrode Diameter For Hard To Ignite Fuels:
Spark Plug Optimized Center Electrode is the best choice between extremly thin 0.4 mm Iridium tip spark plugs and large electrode 2.8 mm Copper spark plugs. Brisk Iridium Racing spark plugs utilize a 1mm diameter spark plug iridium center electrode tip. Brisk Iridium Racing center electrode is capable of displacing more heat than smaller diameter tips used by other Iridium spark plug manufacturers, and is the best iridium spark plug choice for demanding power applications.

Brisk Iridium Racing Spark Plug cut-back ground electrode accumulates less heat, displaces heat more rapidly, and allows better access of A/F mixture to the spark and easier (less restricted) spread of the propagating flame front.
Cross Reference Guide