Can anyone confirm the plugs for a STOCK f80?
When i go to ECS and plug in NGK 97506, they say they are NOT the plugs for the f80.
They (ECS) reference either a BMW or Bosch spark plug.
I've found that in spark plugs, on stock vehicles, staying stock is far more likely to leave you happy - especially with a quality OEM part not known to cause issues.
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