⚡ Ignite your drive with HKS Super Fire – where performance meets precision!
The HKS 50003-M45XL M-Series Super Fire Racing Spark Plug features a 90.6mm heat range, an iridium alloy center electrode, and a platinum chip outer electrode, delivering enhanced ignition, durability, and cooler engine operation. Designed for vehicle-specific fitment, it’s a top-tier upgrade favored by performance enthusiasts seeking reliable, high-horsepower spark plugs.
| ASIN | B003THZK5Q |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #621,436 in Automotive ( See Top 100 in Automotive ) #136 in Automotive Performance Spark Plugs #3,324 in Automotive Replacement Spark Plugs |
| Brand | HKS |
| Core Material | Iridium |
| Customer Reviews | 4.8 4.8 out of 5 stars (133) |
| Date First Available | June 22, 2010 |
| Exterior | Machined |
| Global Trade Identification Number | 04957266720431 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.353 ounces |
| Item model number | 50003-M45XL |
| Manufacturer | HKS |
| Manufacturer Part Number | 50003-M40G |
| Model | 50003-M45XL |
| Product Dimensions | 3.74 x 0.98 x 0.79 inches |
| Thread Size | Fourteen millimeters by Nineteen millimeters |
| Top Material Type | Metal |
| Vehicle Service Type | UTV |
R**1
Perfect upgrade to my tuned elantra n
Switched to these HKS spark plugs and wow — my car runs smoother and feels more responsive. Easy to install and they hold up great even when I push the engine hard. Definitely a solid upgrade if you want better performance without breaking the bank. Highly recommend!
D**K
High powered turbo spark plug
Great high horsepower plug. Works in the bi turbo M157 motor with a tune. Keeps things cooler and happy. More durable than oem when tuned.
S**Z
Authentic
Excellent quality
M**M
Authentic
I was skeptical about this but then asked the seller if this is a Genuine product he answered yes. Once the product arrived and tested I realize that it is 100% authentic. Worked great on my Veloster Turbo
T**D
All hype
Overhyped. Don’t see a change at all
K**Y
Awesome Product
Was used on my 13 veloster turbo! I am tuned now and these plugs are amazing! Cant beat the price
A**I
Already bought it again :)
I already bought this item for 2nd time. It gave me the performance I needed as I have my car tuned and needs higher performance spark plugs. It lasted for more than 50k kilometer
K**E
Arrived as described
Spark plugs arrived on time and as described!
S**N
❤️very nice 👍🏼
R**N
Just received my "brand new spark plug" I ordered... Opened the box and found this in it... a used NGK plug.. this is unreal.
Trustpilot
3 weeks ago
3 weeks ago
