NGK counterfeit spark plugs. How to tell the difference. (ILFR6B 6481) — Blingstrom
Beware of counterfeit NGK spark plugs for RSV4 ****
COUNTERFEIT NGK Laser Iridium Spark Plugs MODEL IZFR6K11 - YouTube
Identifying Fake NGK Spark Plugs - DFD
Tuner Imports - Just when we thought the counterfeit NGK Spark Plugs we found recently were a pretty close match to the real thing, we've now found counterfeit Denso Iridium Power Spark