{"id":17846,"date":"2025-05-28T12:46:59","date_gmt":"2025-05-28T09:49:04","guid":{"rendered":"https:\/\/www.mwsteel.eu\/?post_type=product&#038;p=17846"},"modified":"2025-05-29T14:53:52","modified_gmt":"2025-05-29T11:53:52","slug":"hks-spark-plugs-m40-xl-m45-xl","status":"publish","type":"product","link":"https:\/\/www.mwsteel.eu\/en\/tuote\/hks-spark-plugs-m40-xl-m45-xl\/","title":{"rendered":"HKS Spark Plugs M40-XL, M45-XL"},"content":{"rendered":"<p>We have the full selection of HKS Super Fire Racing spark plugs for race and tuning applications, featuring reinforced ignition capabilities, durability and anti-insulation. The heat ranges are designed to withstand high temperatures and pressures under racing conditions.<\/p>\n<p>The thermal edge of the ceramic insulator discharges to help decrease carbon deposits under long idling.<\/p>\n<p>Their iridium alloy center electrode reduces voltage requirements and improves ignition performance and durability.<\/p>\n<p>The HKS M-XL series spark plugs feature a narrow Long Reach M12 x 26,5 thread and a plug wrench size 16 mm \/ 5\/8&#8243;<\/p>\n<p>Notable engine applications include:<\/p>\n<ul>\n<li data-sourcepos=\"31:1-31:158\"><span class=\"citation-119\">Mitsubishi Lancer Evo X (4B11T engine):<\/span><span class=\"citation-119 citation-end-119\"> Both M40XL and M45XL are popular choices for this engine, depending on the level of tune<\/span><\/li>\n<li data-sourcepos=\"32:1-32:63\"><span class=\"citation-118\">Mercedes-Benz AMG 5.5L Bi-Turbo engines<\/span><\/li>\n<li data-sourcepos=\"32:1-32:63\">Certain Mini Cooper models (especially with the N12\/N14\/N18 engines, although specific fitment varies by year and engine code)<\/li>\n<li data-sourcepos=\"34:1-34:107\">Some Subaru and Honda applications, particularly those requiring a 12mm thread with a long reach.<\/li>\n<li data-sourcepos=\"35:1-36:0\"><span class=\"citation-117\">Certain <\/span><span class=\"citation-117\">Kia\/Hyundai<\/span><span class=\"citation-117 citation-end-117\"> platforms (e.g., some 2.0T, 2.5T, and 1.6T engines).<\/span><\/li>\n<\/ul>\n<p>Two heat ranges are offered: 40 (NGK 8) and 45 (NGK 9).<\/p>\n<p>The chart below illustrates the respective Denso and NGK heat range indexes.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-17801\" src=\"https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko-325x57.jpg\" alt=\"\" width=\"530\" height=\"93\" srcset=\"https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko-325x57.jpg 325w, https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko-600x104.jpg 600w, https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko.jpg 707w\" sizes=\"auto, (max-width: 530px) 100vw, 530px\" \/><\/p>\n<p>Choose the best option from the drop down menu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We have the full selection of HKS Super Fire Racing spark plugs for race and tuning applications, featuring reinforced ignition capabilities, durability and anti-insulation. The&#8230;<\/p>\n","protected":false},"featured_media":17804,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[1046],"product_tag":[],"class_list":{"0":"post-17846","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-spark-plugs","8":"first","9":"instock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product\/17846","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/comments?post=17846"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/media\/17804"}],"wp:attachment":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/media?parent=17846"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product_brand?post=17846"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product_cat?post=17846"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product_tag?post=17846"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}