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Denso Iridium Spark Plugs for 2013-18 Focus ST/ST250 (box of 4)

Denso Iridium Spark Plugs for 2013-18 Focus ST/ST250 (box of 4)

Brand: Denso
Price: $37.95
No shipping required
NOTE: Spark plugs do not come pre-gapped. It is recommend to avoid using any gapping tool that applies pressure to the iridium tip when changing the gap, as this can break the iridium tip. It is recommended that for every 50hp increase in power that the spark plugs be one heat range colder.

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Product Details
Iridium is 6 times harder, 8 times stronger, and has a melting point 1200 degrees higher than platinum. Put that into a harsh environment such as an engine piston chamber, and you have a spark plug that can resist wear much better than platinum. Additionally, the DENSO Iridium Power alloy is so durable; it allowed our engineers to produce the worlds smallest center electrode (.4mm) which reduces the voltage requirements, concentrating its sparking power. Also, its smaller size, combined with the tapered U-Groove ground electrode, allows more room for the flame kernel to develop and produce a more efficient combustion.
Make/Model: Focus
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