NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)

NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)

Marsoni

M251S

$169.17

Get it in 3 business days with 1 day shipping. Friday, May 29

NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)NGK Racing spark plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions. NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world. The center electrode of the NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability. NGK Racing plugs bring ultra high performance in a variety of heat ranges. Special

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I won’t actually use these for a few days when my mattress arrives. Unboxed this morning and they are not as plump and full as I expected but they’re laying out to expand. Overall first impression is they felt comfortable and I could adjust them with my hands. They seem well made and durable. Cant say anything yet about firmness or shape retention since I’ve not used them. They feel like they will be soft. So time will tell but so far I’m loving what I see.

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Reviewed in the United States on April 28, 2026