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Description
NISMO Racing Spark Plug For Cefiro A31 RB20DET 22401-RS238-7Brand NISMO Series Name Racing Spark Plug Product Descriptions NGK spark plugs are used in many different racing formats, including N1 racing. This is a highly reliable spark plug that features better ignition performance and reduced electric discharge voltages. Electrode Center: platinum, Electrode External: platinum, Plug type: BC E(JIS), Heat rating: 7 Product Number 22401 RS238 7 Compatible Vehicle Cefiro A31 Engine RB20DET Remark 1 spark plug
| Brand | NISMO |
| Series Name | Racing Spark Plug |
| Product Descriptions | NGK spark plugs are used in many different racing formats, including N1 racing. This is a highly reliable spark plug that features better ignition performance and reduced electric discharge voltages. Electrode Center: platinum, Electrode External: platinum, Plug type: BC-E(JIS), Heat rating: 7 |
| Product Number | 22401-RS238-7 |
| Compatible Vehicle | Cefiro A31 |
| Engine | RB20DET |
| Remark | 1 spark plug with no resistor Material of center electrode: Platinum chip or iridium Center electrode: φ 0.55 to φ 0.8 (Improvement of ignition performance, reduction of discharge voltage) Reflected tip shape of firing part, Improved anti-smoldering and fogging performance |
| Notes | Images are for illustration purpose only. Actual product may vary. |
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4.4 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Great socks!
These are great low cut socks with padding in appropriate places. The shape keeps them from sliding down in my tennis shoes. I just wish more than three pair came in the pack.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Great socks
Size: Large, Color: (672) Super Pink / Blaze Orange / Super Pink
My favorite socks! Fit great and don’t slip down in my shoes. They are cozy and cushiony. I love the colors too.
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Reviewed in the United States on October 21, 2025
★★★★★ 5
Quality under armor product
These are so very comfortable they are thin yet keep my feet warm around the house while it’s snowing outside
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Reviewed in the United States on January 7, 2026
★★★★★ 5
Fav socks
My favorite socks! Love them!
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Reviewed in the United States on April 20, 2026
★★★★★ 4
Not bulky fit
Size: Large, Color: (009) Gray Dawn / White / Prime Pink
Thinner than UA other cushioning run socks, but this fit is perfect and doesn't shift in my shoe. I wear a women's 9.5 and determined Large doesn't squeeze my foot like Medium size (too exact). Bonus... avaliable olors beyond black and Grey.
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Reviewed in the United States on October 2, 2025
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