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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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HKS
HKS Super Fire Racing M40i Spark Plugs (Pack of 10)
$270.00
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
HKS Super Fire Racing M40i spark plugs are engineered to withstand the extreme thermal loads and high-pressure environments of performance engines. Featuring a specialized 0.6mm iridium alloy center electrode, these plugs require lower voltage for ignition while providing a more consistent and powerful spark than standard copper alternatives. The outer electrode is reinforced with a platinum square chip, ensuring long-term durability and resistance to electrode erosion in modified or forced-induction applications.
- Iridium Alloy Center Electrode: 0.6mm tip diameter reduces required voltage and improves ignition performance.
- Platinum Square Chip: Improves durability and provides consistent sparking under high heat.
- Thermal Management: Designed for high-performance builds to prevent pre-ignition and fouling.
- Specific Heat Range: M40i designation optimized for high-power levels.
- Part Number: M40i
- Package Includes: 10 Spark Plugs
Whether you are replacing worn ignition components or upgrading for a track-focused build, the HKS Super Fire Racing series delivers the reliability needed for high-RPM stability and crisp throttle response.
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
HKS Super Fire Racing M40i Spark Plugs (Pack of 10)
$270.00
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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$270.00
$270.00
$270.00
HKS Super Fire Racing M40i spark plugs are engineered to withstand the extreme thermal loads and high-pressure environments of performance engines. Featuring a specialized 0.6mm iridium alloy center electrode, these plugs require lower voltage for ignition while providing a more consistent and powerful spark than standard copper alternatives. The outer electrode is reinforced with a platinum square chip, ensuring long-term durability and resistance to electrode erosion in modified or forced-induction applications.
- Iridium Alloy Center Electrode: 0.6mm tip diameter reduces required voltage and improves ignition performance.
- Platinum Square Chip: Improves durability and provides consistent sparking under high heat.
- Thermal Management: Designed for high-performance builds to prevent pre-ignition and fouling.
- Specific Heat Range: M40i designation optimized for high-power levels.
- Part Number: M40i
- Package Includes: 10 Spark Plugs
Whether you are replacing worn ignition components or upgrading for a track-focused build, the HKS Super Fire Racing series delivers the reliability needed for high-RPM stability and crisp throttle response.
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