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HKS 50003-M40XL-1 Super Fire Racing Spark Plug M40XL

Part of: HKS Super Fire Racing Spark Plug

Other options in this family: HKS 50003-MR45HLZ HKS 50003-M45G-1 HKS 50003-M40I-1 HKS 50003-MR45XLZ HKS 50003-MR40XLZ

Manufacturer

Picture for manufacturer HKS

Part Number

50003-M40XL-1
5 reviews
Sale Price

$30.00

Estimated ship date Wednesday, November 25

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Product Details

The HKS Super Fire Racing spark plug delivers enhanced ignition performance for high-performance and racing applications. Featuring an ultra-fine 0.6mm iridium center electrode, this spark plug provides improved ignitability and throttle response compared to standard copper plugs.

Key Features:

  • 0.6mm iridium alloy center electrode for superior spark intensity
  • Extended ground electrode design improves flame kernel growth
  • Lower required voltage reduces stress on ignition system components
  • Heat range M40XL suitable for modified engines with increased boost or compression
  • Enhanced durability and longevity compared to conventional spark plugs
  • ISO thread specification for precise fitment

HKS Super Fire Racing spark plugs are engineered to deliver consistent performance under demanding conditions, making them ideal for turbocharged, supercharged, and naturally aspirated performance engines. The fine iridium electrode design promotes more complete combustion and improved fuel efficiency while maintaining reliable ignition even at high RPM.

Great! Friendly whe buying and fast shipping, coming back for more!!!

First time buyer time will tell

Great prices!

I tried calling several times with no answer. Then an email took a whole day for a response

The refrigerator was at my home in 3 days!!! Was 300 dollars cheaper than even Amazon and just a quick getting it. Far exceeded my expectations and will absolutely order from them again. It was bought to replace a furrion 10cu ft fridge that gave out after a year and 4 months, very disappointing. The fit was right on the sides but did not have to trim anything to fit it in and the layout of the inside is much better than the furrion. I ordered the mounting brackets and sour patch thru a different company and still have not received them.

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