


HKS SUPER FIRE RACING M40
Marsoni
M251S
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
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
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
You may also like
4.3 ★★★★★
Based on 1928 reviews
Sort
Product Reviews
★★★★★ 5
Good value
Pattern Name: Ring, Size: 0.42 Ounce (Pack of 10)
This is a new treat for our sweet girl and she loves it! She’s a small dog so I break them in two and it’s just enough.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 4
Overpriced but beloved
Pattern Name: Ring, Size: 0.42 Ounce (Pack of 10)
I think these are so expensive but it really helps my teething dog!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
My Shih Tzu goes crazy for these!!!
Pattern Name: Ring, Size: 0.42 Ounce (Pack of 4)
My guy’s favorite treat. He sticks his nose on the bag and can barely wait for me to get it open. Doesn’t upset his digestion. Have ordered multiple times and will continue to do so.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Dog friendly
Pattern Name: Lollipop, Size: 0.53 Ounce (Pack of 4)
My chihuahua loves these chicken tender lollipops
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 3
🤷🏻♂️
Pattern Name: Lollipop, Size: 0.53 Ounce (Pack of 4)
Need to make sure you are supervising your dog. With in minutes my small terrier had the stick end down her throat with the whole ring end in her mouth. Had to hold the stick end and let her chew on the ring end. Lasted about 20 minutes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026