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HKS M-Series Super Fire Racing Spark Plugs RE Type Heat Range 9 Mazda RX-7 | RX-8 1979-2009 - 50003-M45RE

HKS M-Series Super Fire Racing Spark Plugs (50003-M45RE)

Upgrade your Mazda RX-8 (2004-2009) with the HKS M-Series Super Fire Racing spark plugs, specifically designed for high-performance tuning. These iridium spark plugs deliver exceptional ignition performance and are built to withstand extreme conditions, ensuring that your engine runs smoothly and efficiently.

Key Features

  • 0.6mm Iridium Alloy Center Electrode: Provides superior durability and longevity.
  • Outer Electrode with Platinum Chip: Enhances performance and reduces wear.
  • Short Type Outer Electrode: Designed to minimize vibration for consistent performance.
  • Thermal Edge: Improves heat dissipation for reliable operation.
  • Prevention of Carbon Build-Up: Keeps your engine clean and efficient.
  • Heat Range: 9, ideal for high-performance applications.
  • RE Type: Tailored for rotary engines.
  • Thread Size: 14mm x 12.7mm for easy installation.
  • Wrench Size: 20.8mm for compatibility with standard tools.

Specifications

  • Material: Iridium alloy for enhanced reliability.
  • Melting Point: 2454°C, significantly higher than standard plugs.
  • Sold Individually: Each plug is available separately, allowing you to purchase exactly what you need.

Customer Feedback

Users have reported noticeable improvements in ignition response and overall engine performance after installing the HKS M-Series spark plugs. Many appreciate the durability and reduced carbon build-up, which contributes to longer intervals between maintenance. The plugs are praised for their ability to handle high compression and minor knocking without degrading, making them a reliable choice for performance enthusiasts.

Fitment

  • Mazda RX-8 (2004-2009)

Important Notes

  • Images are for marketing purposes only; the actual product may vary.

Other Part Numbers:
HKS #hks50003-M45RE

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Since its beginning, HKS has been committed to providing well-integrated, reliable,and environmentally sound performance systems. Mr. Hasegawa's strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company's success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts' needs. Moreover, HKS' products are designed to be user friendly for easy installation.

Warranty for Exhaust System

HKS provides a warranty to the original purchaser of HKS exhaust systems against defects in materials and workmanship for a period of one year. The warranty applies only for vehicle specific exhaust systems. Other products such as metal catalyzers, front pipes, exhaust manifolds, and center pipes are not covered.

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Sale price None
Wholesale price $36.75
Shipping Weight: 0.15
Length: 4
Width: 1
Height: 1
Product Added At Monday 06 July, 2015
Product Modified At Friday 11 July, 2025
Imported By ETLOverride
Last Edited By Turn_API
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Emissions Info
Carb Approved Yes
Carb Number -
Epa Status N/A
Prop65 Unknown
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber Strict MAP Core Updated
Turn 14 $31.14 $40.97 ? $38.92 ? 2025-07-11 10:24:50


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