Skip to content

HKS General Application M-Series Super Fire Racing Spark Plug

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 General Application M-Series Super Fire Racing Spark PlugSKU: 50003 M35IL UPC: 4957266720264 HKS General Application M Series Super Fire Racing Spark Plug M35IL 9 HKS M Series Super Fire Racing Spark Plug features a 0. 35mm fine wire iridium center electrode for focused spark energy in high rpm racing applications. Designed for general use in performance Japanese vehicles including Subaru Impreza WRX STI, Toyota MR2 Turbo, and Nissan Silvia models. Delivers stable combustion, quicker throttle response, and
Easy Shipping

Quick Dispatch:

Your HKS General Application M-Series Super Fire Racing Spark Plug 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 General Application M-Series Super Fire Racing Spark Plug ships.

Need Help?
Questions about HKS General Application M-Series Super Fire Racing Spark Plug, 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 General Application M-Series Super Fire Racing Spark Plug in your area.

Get Shipping Estimates

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
4.0 ★★★★★
Based on 1537 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Just Joe
San Leandro, US
★★★★★ 4
Don't spend $50 at the shop, do it yourself.
Filter fits as it should. Good price for what feels line a quality part.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
S
Verified Purchase
Shane605
New York, US
★★★★★ 5
DIY
Good price and fit my 2018 subaru crosstrek. Saved money switching it out myself. Super easy to do it yourself
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Perfect fit
Perfect fit on my 2019 Subaru Forester.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
S
Verified Purchase
sue garland
Draper, US
★★★★★ 5
Easy install
Perfect fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
C
Verified Purchase
Chris
Houston, US
★★★★★ 5
EPAuto stuff works and fits
Love their auto filters, tools and tire air compressers. EPAuto stuff works great and always fit!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026

recommand products