NGK Iridium Spark Plug Box of 4 (BKR8EIX)

NGK Iridium Spark Plug Box of 4 (BKR8EIX)

Marsoni

M251S

$33.80

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

NGK Iridium Spark Plug Box of 4 (BKR8EIX)NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high

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Purchased yesterday and put bot cans in my gas tank. Very pleased with how it works. Had a code P0175 02 sensor bank 2. Thought I had to replace the sensors but looked into products and read the reviews of these can. Check engine light went off this morning. Drove it aggressively after I used the cans and they worked as advertised. Highly recommend.

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Reviewed in the United States on May 12, 2026

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Dave sick

Natrona Heights, US

★★★★★ 5

car performance improvement

I bought this to use in my 2021 chevrolet equinox when my check engine light came on with an exhaust issue. so far I believe it's working. I have noticed increased mileage and a little more "zip" in the engine.

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Reviewed in the United States on May 28, 2026

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JayJay

Grantham, US

★★★★★ 5

Works for us!

We use this regularly in my car. Seems to help keep sensors clear. My engine light comes on if I don’t add. We add it to gas tank. My husband says it’s because of poor quality (dirty) gas from other countries.

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Reviewed in the United States on May 22, 2026

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Jeff Pesos

Lowell, US

★★★★★ 4

Works like a supplement

If you use it and see a difference, you will blame it on this cleaner, if not, you will say the product does not work. Exactly like your weight loss supplements! Who knows what this stuff does, but it may do something. Or maybe it does not.

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Reviewed in the United States on February 7, 2026

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Michael Sliwinski

Birmingham, US

★★★★★ 5

Used to clean an O2 sensor

Seems to have resolved an issue with a wavering idle for my 89 Mercedes 300e with 468,000 miles.

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Reviewed in the United States on March 27, 2026