This is the HKS “SUPER FIRE RACING” spark plug, SUPER FIRE RACING M45HL. The part number is 50003-M45HL.
Plug Type:HL type
Thread Size:φ12×26.5mm
Wrench Size:14mm
Heat Range:NGK Company Thermal value 9
The most powerful plug “M”.
All of the ignitability, durability, and fogging resistance have been enhanced.
The strongest plug that draws out the performance of tuning engines and is also effective for stock engines has been completed.
About this product
0.6mm iridium alloy center electrode
Iridium alloy center electrode with reduced voltage requirement and improved ignition performance, but with superior durability.
Grounding electrode with platinum square tip
Improved wear resistance and, in combination with the iridium alloy center electrode, improved ignitability. In addition, the shortened tip enables a tapered shape and secures a larger space volume.
Short Type Seismic Grounding Electrode
Shortened electrode length and optimized cross-sectional shape increase the cross-sectional coefficient while reducing mass. This contributes to improved strength and durability of the grounding electrode.
Thermo Edge
Carbon buildup caused by prolonged idling and various combustion environments, including air ratios, can degrade insulation and cause misfires. The thermo-edge at the tip of the insulator generates a micro-discharge that burns off accumulated carbon and ensures constant insulation.
Auxiliary spark gap
The gap between the insulator tip and the ground electrode is narrowed to generate a discharge, which, like the thermo-edge, suppresses carbon buildup and prevents fogging and coughing.
Improved ignition performance
Reducing the required voltage enhances ignition power in environments where combustion is difficult, such as in dilute mixtures or under high boost. Also, by securing the volume of space around the electrodes, combustion speed is increased, leading to improved torque, response, and combustion efficiency.
Improved durability
The strength of each part has been greatly improved through the selection of materials and new design of shapes. The original performance is demonstrated even under more severe combustion conditions such as continuous high-load driving on a circuit or tuning.
*Use of plugs under inappropriate combustion conditions or with incorrect heat value selection may result in plug damage.
Improved carbon fouling resistance
Prevents fogging and cussing, and promotes more reliable ignition in various combustion environments.
About HKS
HKS is a Japanese comprehensive tuning parts manufacturer headquartered in Fujinomiya City, Shizuoka Prefecture, at the foot of Mt. The company handles a wide range of products including exhaust, suspension, air intake, turbocharger, engine, and powertrain, and is known as one of the few total tuning manufacturers that can produce a complete car under a single brand.
The company was established in 1973 and has a history of over 50 years. In addition to participating in drifting and GT car racing, the company boasts such advanced technology that in the past it has built a prototype 3.5-liter V12 engine for Formula 1 and actually ran it.
The company is listed on the Tokyo Stock Exchange's Standard Market and is ISO 9001 certified, which gives it a high level of social credibility. The company also has bases in the U.S., Europe, and Asia, and has a complete after-sales support system.
With a wide range of product lineups, from hard tuning to easy factory-installed replacement tuning, this is a brand that will further expand the fun of tuning your car.
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Shipping Method
We will ship via eBay SpeedPAK - Ship via FedEx within 6 business days after payment is received.
We will upload your tracking number to eBay as soon as possible after shipment.
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Payment Methods
We accept PayPal, Google Pay, VISA, Master Card, and Amex.
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Return Policy
We accept returns for 30 days.
If you wish to return an item, please contact us first at.
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About Customs Duties
To Buyers in the United States
This item includes applicable import duties. No additional charges will be incurred after payment is completed.
To Buyers Outside the United States
Import duties, taxes, and fees are not included in the item price or shipping cost. These charges are the responsibility of the buyer.
Before purchasing, please check with your country's customs office to determine the amount of these additional charges.