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DENSO IRT01-31 Iridium Racing Spark Plug

Marsoni M251S
Sale price$152.99
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Get it in 3 business days with 1 day shipping. Friday, May 29
DENSO IRT01-31 Iridium Racing Spark PlugThe DENSO IRT01 31 Iridium Racing Spark Plug is engineered for high performance, providing more power and torque. It features a 1. 1mm electrode gap and a solid bolt terminal type. The plug has a diameter of 14mm and a reach of 19mm, with a bolt head diameter of 20. 6mm. The 0. 4mm Iridium Rhodium alloy center electrode requires less voltage to fire, enhancing firing performance. The 0. 8mm pure platinum ground electrode minimizes the risk of melting
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  • We offer a 30-day return/exchange service after receiving.
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4.6 ★★★★★
Based on 2120 reviews
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Shopper1234
Alexandria, US
★★★★★ 5
Comfortable
Color: Granite Gray, Size: X-Large
Great fit, quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
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james granata
New York, US
★★★★★ 3
Very unreliable size chart second and final time I go there.
Color: Angel Falls, Size: Medium
Size chart unreliable, medium very baggy, decent quality
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Reviewed in the United States on April 24, 2026
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Ron's Raves & Roasts
Fort Morgan, US
★★★★★ 5
Great Fit and Price While Updating My Wardrobe
Color: Shortbread, Size: Large
As I’ve been getting fitter, my old clothes started looking too baggy, so I needed something that fit better without breaking the bank. This COOFANDY chambray shirt turned out to be exactly what I was looking for—lightweight, wrinkle-resistant, and stylish enough for casual or dressy wear. The fabric feels soft and breathable, and it pairs easily with jeans or slacks. Since I’m still losing weight, I didn’t want to overspend on clothes I may size out of soon, and these hit the sweet spot for both quality and affordability.
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Reviewed in the United States on September 28, 2025
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Lyle Miller
Los Angeles, US
★★★★★ 1
Wron Size Shipped Twice
Color: White, Size: Large
I ordered a large twice. 1st delivery was an XL, two sizes too large. The second reorder was an L, and fit like a medium. They can't get the order siz right.
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Reviewed in the United States on May 7, 2026
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Claude Cooper
Grantham, US
★★★★★ 5
Excellent shirt!
Color: Chive, Size: Large
Excellent shirt! Comfortable and looks great! True to size, and light weight.
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Reviewed in the United States on March 22, 2026

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