Spark plug NGK racing BR10EG

The name says it all: racing spark plugs are intended for motorsport use, and their characteristics make them less suitable for road use.
These plugs make a difference when operating permanently in the upper rev range, as is the case in motorsport. In motorsport, it is not about durability, but about dealing with high revs, full-throttle flat-out speeds and the resulting vibrations.
These plugs are used by works teams, semi-professional teams, engine tuners and in the karting world.
Durability: this is an open-ended question, as it depends on the individual race conditions. Experience has shown that 1–5 races is about right, depending on the racing class.
The plugs are available in different heat ranges and must be selected by an engine builder or tuner to match the engine. Attention: these spark plugs have a long M14 thread (NGK Type “B”). Most racing cylinders use long M14 threads, but check to ensure the correct size. Racing spark plugs with platinum centre electrodes provide an extremely strong spark, even with lower-power sources!

NGK Type “B”