Priced individualy (1), Please order as many as needed for
your engine.
From our experience, the VAC staff recommend these specific
resistor type NGK Spark plugs for M50, M52 and S50us / S52us that
are boosted or have bolt on mods over other types of plugs... even
a Platinum or Iridium plug.
In our testing and years of use, these plugs work excellent on both
lightly modified and engines running boost up to 16lbs.
Despite the claims of other "fancy" types of plugs, these have
shown the best performance on the Dyno as well as a smoother idle
and plenty of lifespan.
Under hard performance driving conditions, checking spark plug
gap and/or replacing these plugs on a regular 25-35k mile intervals
is recommended for best results.
We always keep these in stock for whenever you need
them!
VAC Tech Tips:
These plugs work well for bolt on turbo charged M5x/S5X.
These plugs are 1 heat range colder than 96-99 OEM specs.
Gap is .32 stock, Set gap at .28 for best results with higher boost
levels
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