Mazda 3 ngk spark plugs

How to Replace Spark Plugs: 2010-2013 Mazda 3 2.5L

USE THESE SPARK PLUGS WHEN YOU START TUNNING YOUR MAZDASPEED3/6

Mazda 3 Spark Plug Replacement

HOW TO INSTALL SPARK PLUGS!

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Mazda 3 (2.0 liter engine) 2010 - 2013 -- Changing Your Spark Plugs

NGK 6510 LTR7IX-11 Iridium Spark Plug For MazdaSpeed 3 / Ford Focus ST, Mustang GT & BOSS

How to Replace Mazda 3 Spark Plugs in Under 5 Min!

NGK Iridium Spark Plugs at 100,000 Miles

Mazda 3 Spark Plug Replacement