NGK Laser Platinum- Premium Spark Plugs - PFR6B (STi 99-00 GC)

The laser-welded, dual-platinum surface of this NGK spark plug provides high
ignitability and a longer service life compared to regular plugs through its
slow wear rate and anti-fouling characteristics. This plug features trivalent
metal plating, corrugated ribs to prevent flashover, pure alumina silicate
ceramic insulator, and is triple-sealed. The spark plug is an essential
component of the engine and they should be regularly checked and replaced to
ensure optimum performance.