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HKS SUPER FIRE RACING M40
HKS SUPER FIRE RACING M40
HKS SUPER FIRE RACING M40
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HKS SUPER FIRE RACING M40

Marsoni M251S
Sale price$135.00
Pay 4 payments of $33.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
HKS SUPER FIRE RACING M40SKU: 50003 M40 UPC: 4957266720219 HKS Super Fire Racing M40 Spark Plug 2002 2021 Subaru Impreza WRX STI Legacy GT Forester XT HKS Super Fire Racing M40 is a high performance iridium spark plug designed for racing and tuned applications. It fits 2002 2021 Subaru Impreza WRX STI Legacy GT Forester XT models with EJ20 EJ25 engines. Expect stronger ignition sparks for better combustion higher horsepower throttle response and extended plug life under
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  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 309 reviews
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Product Reviews
J
Verified Purchase
Jenn C
Belleville, US
★★★★★ 5
So comfortable
Size: Large, Color: White (6-pairs)
They are so comfortable on my feet. Not thin but not so thick your feet are hot. Very comfy and well made. Socks that will last.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2024
M
Verified Purchase
Mike Reading
Waukegan, US
★★★★★ 5
Fit like a glove… on your feet!
Size: Large, Color: White (6-pairs)
There socks! What else can I say?! Good fit! Good feel! Good quality! A little more on the thicker than thinner side, so if you want a really thin white ankle maybe go another direction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2024
R
Verified Purchase
Randy Deasy
Boise, US
★★★★★ 5
Not to thick or thin well made
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
I bought pink so as not to lose when doing laundry with my daughter who steels all socks lol!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
S
Verified Purchase
Stacey Cohick
Massapequa, US
★★★★★ 5
Perfect
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
They were perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
S
Verified Purchase
Susan Brown
New York, US
★★★★★ 5
Very Comfortable!
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
Very comfortable. Don’t slip off back of heal. Love the colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

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