HKS SUPER FIRE RACING M40

Marsoni

M251S

$135.00

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

Easy Shipping

Quick Dispatch:

Your HKS SUPER FIRE RACING M40 orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your HKS SUPER FIRE RACING M40 ships.

Need Help?
Questions about HKS SUPER FIRE RACING M40, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for HKS SUPER FIRE RACING M40 in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

Bought as a working watch so I don’t wreck my good watches. It’s been working just fine and holding up well while not taking very good care of it. Keeps accurate time. Glass has stayed clear. Black finish looks good and is holding up well. Seems to hold up with steady pounding. Stop watch buttons are a bit crude and will mess up your time when your hand gets pushed back against it during hard labor. However, I have not babied this watch at all.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 10, 2025

Verified Purchase

eugene kennedy

Los Angeles, US

★★★★★ 5

Great product

Color: two tone blue

Will need adjustment. Great looking watch

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 2, 2026

Verified Purchase

Johnie B

Houston, US

★★★★★ 3

3 stars

Color: all black watch

It’s not an ugly watch, but I did not think the watch looked as nice in person This watch lost several minutes over a few months. It is light and feels cheap. However, it was not expensive, it’s comfortable to wear and beauty is in the eye of the beholder.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on July 15, 2025