Seller notes

Set of 8 NGK Iridium IX Spark Plugs New 7164 TR55IX Fast Free Shipping TR55IX Set of 8 - Iridium IX Spark Plug (7164) by NGK. Designed for performance enthusiasts who want extreme ignitability, improved throttle response and superior anti-fouling, these spark plugs are a great option for modified engines and appropriate replacement for OE spark plugs, where recommended. With a 0.6 mm laser welded iridium tip and taper cut ground electrode, these plugs provide more area for flame expansion for qu...

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