Focus ST/RS NGK Spark Plugs Iridium IX Set 2013-2017/2016-2017 Installation

Bill shows you how to install a Set of Four NGK Iridium IX Spark Plugs on your 2013-2017 Focus ST or 2016-2017 Focus RS.

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Follow along with our text-based installation guide:
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This is a set of 4 NGK Iridium IX Spark Plugs for all 2013-2014 Focus STs. They are designed specifically for the performance enthusiast so they are perfect for the Focus ST that has lots of upgrades and high boost applications installed. Iridium alloy is used in these great new spark plugs providing an extremely high melting point that is ideal for the high-tech, high-performance engine in your vehicle.

These spark plugs feature fine iridium tip that has high durability and a consistently stable spark, an extremely high melting point, trivalent metal plating, superior anti-corrosion, and anti-seizing properties, outstanding acceleration, high fuel efficiency and durability, ultimate design, technology and performance, and the heat range is 1 colder than factory plugs

NGK spark plugs are known for their numerous contributions to the spark plug market, including the development of copper core spark plugs, new ceramic technology and the development of iridium spark plugs like these. NGK Spark Plugs also developed the V-Groove spark plug, which is an ideal product for today's clean-burning, low emissions engines.

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