{"product_id":"hks-super-fire-racing-spark-plug-m40x","title":"HKS Super Fire Racing Spark Plug - M40X (50003-M40X)","description":"\u003ch2 data-path-to-node=\"3\"\u003eHKS Super Fire Racing Spark Plug - M40X (50003-M40X)\u003c\/h2\u003e\n\u003cp data-path-to-node=\"4\"\u003eOptimize your ignition with the \u003cb data-path-to-node=\"4\" data-index-in-node=\"32\"\u003eHKS M40X Super Fire Racing Spark Plug\u003c\/b\u003e, the premium choice for high-performance tuning. This \u003cb data-path-to-node=\"4\" data-index-in-node=\"124\"\u003eX Type\u003c\/b\u003e plug is engineered with an \u003cb data-path-to-node=\"4\" data-index-in-node=\"158\"\u003eNGK Heat Range 8 equivalent\u003c\/b\u003e, providing superior heat dissipation and spark stability for engines running increased boost or high-compression setups.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eThe M40X is designed to withstand extreme cylinder pressures where standard plugs fail, making it a favorite for modified \u003cb data-path-to-node=\"5\" data-index-in-node=\"122\"\u003eSuzuki K6A turbo\u003c\/b\u003e engines and specific \u003cb data-path-to-node=\"5\" data-index-in-node=\"160\"\u003eEuropean performance\u003c\/b\u003e applications.\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\"\u003eX Type Special Fitment:\u003c\/b\u003e Features a \u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"35\"\u003e\u003cspan class=\"math-inline\" data-math=\"12\\\\text{mm}\" data-index-in-node=\"35\"\u003e$12\\\\text{mm}$\u003c\/span\u003e thread\u003c\/b\u003e and \u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"58\"\u003e\u003cspan class=\"math-inline\" data-math=\"19\\\\text{mm}\" data-index-in-node=\"58\"\u003e$19\\\\text{mm}$\u003c\/span\u003e reach\u003c\/b\u003e, specifically designed for specialized cylinder head geometries.\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\"\u003e0.6mm Iridium Alloy Center Electrode:\u003c\/b\u003e Lowers the required ignition voltage, ensuring a stronger, more consistent spark even under lean-burn or high-boost conditions.\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\"\u003ePlatinum Ground Electrode:\u003c\/b\u003e A square platinum chip provides extreme durability, maintaining the precise spark gap longer than standard performance plugs.\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\"\u003eAnti-Vibration Design:\u003c\/b\u003e The shortened outer electrode reduces weight and resists high-frequency vibrations common in high-RPM racing environments.\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\"\u003eSelf-Cleaning Thermal Edge:\u003c\/b\u003e The ceramic insulator features a \"Thermal Edge\" that discharges to help burn off carbon deposits, preventing misfires after long periods of idling or cold starts.\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\"\u003ePart Number:\u003c\/b\u003e 50003-M40X\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 X 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=\"12\\\\text{mm} \\\\times 19.0\\\\text{mm}\" data-index-in-node=\"13\"\u003e$12\\\\text{mm} \\\\times 19.0\\\\text{mm}$\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 M40X is a specialty plug often used in:\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\"\u003eSuzuki:\u003c\/b\u003e Every \u0026amp; Jimny (K6A DOHC Turbo - DA62W\/DA62V), Cappuccino (EA11R\/EA21R)\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\"\u003eEuropean Models:\u003c\/b\u003e Select \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"24\"\u003eBMW\u003c\/b\u003e, \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"29\"\u003eVolkswagen\u003c\/b\u003e, and \u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"45\"\u003eAudi\u003c\/b\u003e engines (2001–2007) that require a 12mm thread with a standard reach.\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\"\u003eCustom Builds:\u003c\/b\u003e Ideal for small-displacement turbo engines requiring a colder heat range for track or spirited driving.\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 All HKS spark plugs are \u003cb data-path-to-node=\"13,0\" data-index-in-node=\"41\"\u003esold individually\u003c\/b\u003e in Australia. Please ensure you select the correct quantity for your engine (e.g., \u003cb data-path-to-node=\"13,0\" data-index-in-node=\"142\"\u003eQty: 3\u003c\/b\u003e for Suzuki K6A, \u003cb data-path-to-node=\"13,0\" data-index-in-node=\"165\"\u003eQty: 4\u003c\/b\u003e for VW\/Audi).\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":47248544464996,"sku":"50003-M40X","price":45.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/6260\/1060\/files\/photo_787bed82-9d87-4095-8c3c-b9e12d2e640d.jpg?v=1762360115","url":"https:\/\/kyp.com.au\/products\/hks-super-fire-racing-spark-plug-m40x","provider":"KYP Performance House","version":"1.0","type":"link"}