NGK Iridium IX Spark Plug Box of 4 (DR9EIX)

NGK Iridium IX Spark Plug Box of 4 (DR9EIX)

Marsoni

M251S

$46.52

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

NGK Iridium IX Spark Plug Box of 4 (DR9EIX)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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We offer a 30-day return/exchange service after receiving.
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I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!

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Reviewed in the United States on December 29, 2025

Verified Purchase

Robert Gheysens

Natrona Heights, US

★★★★★ 5

Night and day difference

Style: Tech Pack 28 sqft

Stuff works great. Really makes a difference in the sound quality of the vehicle.

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Reviewed in the United States on June 8, 2026

Verified Purchase