{"product_id":"hks-super-fire-racing-spark-plug-m40","title":"HKS Super Fire Racing Spark Plug - M40 (50003-M40)","description":"\u003ch2 data-path-to-node=\"3\"\u003eHKS Super Fire Racing Spark Plug - M40 (50003-M40)\u003c\/h2\u003e\n\u003cp data-path-to-node=\"4\"\u003eMaximize your engine's combustion efficiency with the \u003cb data-path-to-node=\"4\" data-index-in-node=\"54\"\u003eHKS M40 Super Fire Racing Spark Plug\u003c\/b\u003e. This JIS-type performance plug is a staple for high-output JDM engines, offering an \u003cb data-path-to-node=\"4\" data-index-in-node=\"176\"\u003eNGK Heat Range 8 equivalent\u003c\/b\u003e to ensure stability and prevent pre-ignition in tuned or high-boost applications.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eDesigned as the ultimate \"all-rounder\" for both street and circuit use, the M-Series focus is on \u003cb data-path-to-node=\"5\" data-index-in-node=\"97\"\u003ereliability, durability, and anti-carbon buildup\u003c\/b\u003e.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"6\"\u003eKey Performance Benefits\u003c\/h3\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003e0.6mm Iridium Alloy Center Electrode:\u003c\/b\u003e Drastically reduces the voltage required for a spark, resulting in improved ignition performance and a more responsive throttle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003ePlatinum Ground Electrode:\u003c\/b\u003e Features a square platinum chip that enhances durability and provides a consistent spark gap even under extreme cylinder pressures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eShort-Type Anti-Vibration Electrode:\u003c\/b\u003e Specifically engineered to resist the high-frequency vibrations found in high-RPM racing engines, preventing electrode fatigue and failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eThermal Edge Technology:\u003c\/b\u003e The ceramic insulator features a \"Thermal Edge\" that discharges to help burn off carbon deposits, keeping the plug clean during extended idling or stop-start driving.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eSuperior Heat Management:\u003c\/b\u003e The copper core and nickel-plated housing provide excellent heat dissipation and corrosion resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"8\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eHKS SKU:\u003c\/b\u003e 50003-M40\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003ePlug Type:\u003c\/b\u003e JIS Type\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eHeat Range:\u003c\/b\u003e NGK #8 Equivalent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eThread Size:\u003c\/b\u003e \u003cspan class=\"math-inline\" data-math=\"14\\\\text{mm} \\\\times 19.0\\\\text{mm}\" data-index-in-node=\"13\"\u003e$14\\\\text{mm} \\\\times 19.0\\\\text{mm}$\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,4,0\"\u003e\u003cb data-path-to-node=\"9,4,0\" data-index-in-node=\"0\"\u003eWrench Size:\u003c\/b\u003e \u003cspan class=\"math-inline\" data-math=\"16\\\\text{mm}\" data-index-in-node=\"13\"\u003e$16\\\\text{mm}$\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,5,0\"\u003e\u003cb data-path-to-node=\"9,5,0\" data-index-in-node=\"0\"\u003eElectrode:\u003c\/b\u003e Iridium Center \/ Platinum Ground\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp data-path-to-node=\"11\"\u003eThe HKS M40 is a popular choice for a variety of performance engines requiring a JIS-spec plug, including:\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eNissan:\u003c\/b\u003e Silvia (S13\/S14\/S15), Skyline (ER34\/R33\/R32), Stagea (WC34)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eToyota:\u003c\/b\u003e Supra (JZA80), Chaser (JZX100), Aristo (JZS161) — \u003ci data-path-to-node=\"12,1,0\" data-index-in-node=\"58\"\u003eFits many 1JZ\/2JZ-GTE VVTi variants.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eMitsubishi:\u003c\/b\u003e Lancer Evolution (EVO IV through IX)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eSubaru:\u003c\/b\u003e Early Impreza WRX \u0026amp; STI models\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote data-path-to-node=\"13\"\u003e\n\u003cp data-path-to-node=\"13,0\"\u003e\u003cb data-path-to-node=\"13,0\" data-index-in-node=\"0\"\u003ePurchasing Note:\u003c\/b\u003e Spark plugs are \u003cb data-path-to-node=\"13,0\" data-index-in-node=\"33\"\u003esold individually\u003c\/b\u003e in Australia. For a 4-cylinder engine (Silvia\/EVO), please order \u003cb data-path-to-node=\"13,0\" data-index-in-node=\"116\"\u003e4\u003c\/b\u003e. For a 6-cylinder engine (Skyline\/Supra), please order \u003cb data-path-to-node=\"13,0\" data-index-in-node=\"173\"\u003e6\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":47248544530532,"sku":"50003-M40","price":40.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/6260\/1060\/files\/download.jpg?v=1767168930","url":"https:\/\/kyp.com.au\/products\/hks-super-fire-racing-spark-plug-m40","provider":"KYP Performance House","version":"1.0","type":"link"}