HKS Super Fire Racing M45 Iridium Spark Plug — High-Performance Ignition

SKU: HKS50003-M45
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Sale price$283.50
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About HKS

HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash Power with HKS Super Fire Racing M45

The HKS Super Fire Racing M45 spark plug is a premier choice for performance enthusiasts looking to optimize their engine's ignition system. Built with a focus on durability and spark intensity, the M45 is designed to perform under the high-stress environments found in tuned and forced-induction engines. By utilizing a 0.6mm iridium center electrode, these plugs provide a concentrated spark that ensures rapid flame propagation and reliable ignition across the entire RPM band.

Technical Advantages

  • High-durability iridium alloy center electrode
  • Platinum ground electrode for extended service life
  • Advanced thermal conductivity to manage combustion heat
  • Resistant to carbon deposits and plug fouling
  • Consistent performance in high-compression environments

Upgrading to the HKS M45 series is an essential step for anyone pushing their engine beyond factory specifications. The robust construction ensures that the plug maintains its integrity under high heat and pressure, preventing the misfires often associated with standard OEM plugs. Whether you are building a street machine or a dedicated track car, the M45 offers the reliability and performance you need to stay ahead of the pack. Trust your ignition needs to the experts at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About HKS

HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash Power with HKS Super Fire Racing M45

The HKS Super Fire Racing M45 spark plug is a premier choice for performance enthusiasts looking to optimize their engine's ignition system. Built with a focus on durability and spark intensity, the M45 is designed to perform under the high-stress environments found in tuned and forced-induction engines. By utilizing a 0.6mm iridium center electrode, these plugs provide a concentrated spark that ensures rapid flame propagation and reliable ignition across the entire RPM band.

Technical Advantages

  • High-durability iridium alloy center electrode
  • Platinum ground electrode for extended service life
  • Advanced thermal conductivity to manage combustion heat
  • Resistant to carbon deposits and plug fouling
  • Consistent performance in high-compression environments

Upgrading to the HKS M45 series is an essential step for anyone pushing their engine beyond factory specifications. The robust construction ensures that the plug maintains its integrity under high heat and pressure, preventing the misfires often associated with standard OEM plugs. Whether you are building a street machine or a dedicated track car, the M45 offers the reliability and performance you need to stay ahead of the pack. Trust your ignition needs to the experts at GGCRACING.

Product Details

Product Description

About HKS

HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Unleash Power with HKS Super Fire Racing M45

The HKS Super Fire Racing M45 spark plug is a premier choice for performance enthusiasts looking to optimize their engine's ignition system. Built with a focus on durability and spark intensity, the M45 is designed to perform under the high-stress environments found in tuned and forced-induction engines. By utilizing a 0.6mm iridium center electrode, these plugs provide a concentrated spark that ensures rapid flame propagation and reliable ignition across the entire RPM band.

Technical Advantages

  • High-durability iridium alloy center electrode
  • Platinum ground electrode for extended service life
  • Advanced thermal conductivity to manage combustion heat
  • Resistant to carbon deposits and plug fouling
  • Consistent performance in high-compression environments

Upgrading to the HKS M45 series is an essential step for anyone pushing their engine beyond factory specifications. The robust construction ensures that the plug maintains its integrity under high heat and pressure, preventing the misfires often associated with standard OEM plugs. Whether you are building a street machine or a dedicated track car, the M45 offers the reliability and performance you need to stay ahead of the pack. Trust your ignition needs to the experts at GGCRACING.

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