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HKS M-Series Super Fire Racing Spark Plugs RE Type Heat Range 10 Mazda RX-7 | RX-8 1979-2009 - 50003-M525RE

HKS M-Series Super Fire Racing Spark Plugs (50003-M525RE)

Looking to optimize your Mazda RX-8's performance? The HKS M-Series Super Fire Racing Spark Plugs are engineered specifically for high-performance vehicles like the RX-8 (2004-2009). These iridium spark plugs are designed to withstand advanced tuning levels, ensuring improved ignition performance and exceptional durability.

Key Features

  • 0.6mm Iridium Alloy Center Electrode for superior conductivity
  • Outer Electrode with Platinum Chip enhances longevity
  • Short Type Outer Electrode designed to minimize vibration
  • Innovative Thermal Edge technology for optimal heat dissipation
  • Prevents carbon build-up, maintaining performance under high loads
  • Heat Range: 10.5, ideal for performance applications
  • RE Type, specifically tailored for rotary engines
  • Thread Size: 14mm x 12.7mm for a perfect fit
  • Wrench Size: 20.8mm for easy installation

Specifications

These spark plugs are crafted from a durable iridium alloy, which boasts a high melting point of 2454 degrees Celsius. This allows them to handle high levels of compression and minor knocking without any degradation. The nickel coating on the housing further protects against premature wear, making these plugs a reliable choice for performance enthusiasts.

Fitment

  • Mazda RX-8 (2004-2009)

Customer Insights

Feedback from users highlights the significant improvement in ignition response and engine smoothness after switching to the HKS M-Series plugs. Many have noted a reduction in carbon build-up, which keeps their engines cleaner and performing at their best.

Important Notes

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

Upgrade your Mazda RX-8 with the HKS M-Series Super Fire Racing Spark Plugs and experience the difference in performance and reliability!

Other Part Numbers:
HKS #hks50003-M525RE

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: 0.16
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 -
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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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