⚡ Ignite your ride with precision and power — don’t get left behind!
The HKS 50003-M45XL M-Series Super Fire Racing Spark Plug features a 0.6mm iridium alloy center electrode and a platinum chip outer electrode designed for superior ignition performance and durability. Its anti-vibration shortened outer electrode and Thermal Edge ceramic insulator reduce carbon buildup and misfires, ensuring smoother engine operation and longer service life. Ideal for rotary engines, this spark plug is a high-performance upgrade trusted by enthusiasts seeking reliable power and efficiency.
| ASIN | B003THZK5Q |
| Best Sellers Rank | #71,514 in Automotive ( See Top 100 in Automotive ) #413 in Automotive Performance Spark Plugs |
| Brand | HKS |
| Customer Reviews | 4.7 4.7 out of 5 stars (125) |
| Date First Available | 7 August 2012 |
| Exterior | Machined |
| Item Weight | 10 g |
| Item model number | 50003-M45XL |
| Manufacturer | HKS |
| Manufacturer Part Number | 50003-M40G |
| Model | result.feed.gl_automotive-part_number |
| Product Dimensions | 9.5 x 2.5 x 2 cm; 10 g |
S**N
Original
❤️very nice 👍🏼
R**1
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!
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.
D**K
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
Excellent quality
M**M
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
Trustpilot
1 week ago
2 weeks ago
