Engine part Spark plug CM-6 Iridium EPHIL
EPHIL CM-6 Iridium Spark Plug
Thanks to its Iridium electrode, this spark plug provides a more precise and stable spark.

The combustion becomes more homogeneous, which directly improves:

start-ups,
acceleration,
idle,
engine responsiveness,
overall efficiency of the gasoline engine.
I find this technology particularly interesting for highly stressed RC gasoline engines, especially in aerobatics, warbirds, or large remote-controlled airplanes