{"product_id":"ngk-97506-silzkbr8d8s-iridium-spark-plugs-bmw-n55-m135i-m235i-m2-m3-m4-335i-435i-x6","title":"NGK 97506 SILZKBR8D8S Colder Spark Plugs - BMW N55\/S55 M135i M235i 335i 435i M2 M3 M4","description":"\u003cp\u003e\u003cstrong\u003eNGK 97506 SILZKBR8D8S colder spark plugs for tuned BMW N55 and S55 engines.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA popular ignition upgrade for modified and higher-boost BMWs, the NGK 97506 SILZKBR8D8S is suitable where a colder plug has been specified by the vehicle's tuner. Choose either \u003cstrong\u003e1 plug\u003c\/strong\u003e or a \u003cstrong\u003epack of 6\u003c\/strong\u003e for a complete six-cylinder engine service.\u003c\/p\u003e\n\u003ch3\u003eHeat range and use\u003c\/h3\u003e\n\u003cp\u003eFor BMW \u003cstrong\u003eN55 and S55\u003c\/strong\u003e applications, the NGK 97506 is generally regarded as a \u003cstrong\u003e1-step colder\u003c\/strong\u003e plug. It is commonly referred to as 2-step colder when compared with N54 applications. Plug gap should be set to suit the vehicle's tune, boost level and fuel, following the tuner's specification.\u003c\/p\u003e\n\u003ch3\u003eBMW fitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M135i F20 \/ F21 - N55\u003c\/li\u003e\n\u003cli\u003eBMW M235i F22 \/ F23 - N55\u003c\/li\u003e\n\u003cli\u003eBMW 335i F30 \/ F31 \/ F34 - N55\u003c\/li\u003e\n\u003cli\u003eBMW 435i F32 \/ F33 \/ F36 - N55\u003c\/li\u003e\n\u003cli\u003eBMW M2 F87 - N55\u003c\/li\u003e\n\u003cli\u003eBMW M2 Competition F87C - S55\u003c\/li\u003e\n\u003cli\u003eBMW M3 F80 - S55\u003c\/li\u003e\n\u003cli\u003eBMW M4 F82 \/ F83 - S55\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: NGK\u003c\/li\u003e\n\u003cli\u003eComponent: Spark Plug\u003c\/li\u003e\n\u003cli\u003eComponent number: 000301\u003c\/li\u003e\n\u003cli\u003eNGK stock number: 97506\u003c\/li\u003e\n\u003cli\u003eNGK part number: SILZKBR8D8S\u003c\/li\u003e\n\u003cli\u003eEuro Car Parts reference: 408994300\u003c\/li\u003e\n\u003cli\u003eSpanner size: 14 mm\u003c\/li\u003e\n\u003cli\u003eSpark plug: 1 earthed electrode; fixed SAE connector; interference suppression 5 kOhm; iridium middle electrode; gasket seat\u003c\/li\u003e\n\u003cli\u003eSpark position: 6.0 mm\u003c\/li\u003e\n\u003cli\u003eThread length: 27.5 mm\u003c\/li\u003e\n\u003cli\u003eThread size: M12 x 1.25\u003c\/li\u003e\n\u003cli\u003eType: Iridium\u003c\/li\u003e\n\u003cli\u003eVehicle version \/ hex: Bi-Hex\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended use:\u003c\/strong\u003e Tuned, remapped or higher-boost N55 and S55 engines where a colder plug has been specified by the tuner.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment note:\u003c\/strong\u003e Always verify the NGK part number against the vehicle and tuning specification before installation. A colder spark plug is not automatically an upgrade for every standard engine.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Pack of 6","offer_id":58654396547421,"sku":"NGK-SILZKBR8D8S-6","price":146.73,"currency_code":"GBP","in_stock":true},{"title":"1 Plug","offer_id":65961608577373,"sku":"NGK-SILZKBR8D8S","price":24.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/0411\/2989\/files\/ngk-97506-silzkbr8d8s-n55-s55-1.webp?v=1789808909","url":"https:\/\/www.nineteen72performance.co.uk\/products\/ngk-97506-silzkbr8d8s-iridium-spark-plugs-bmw-n55-m135i-m235i-m2-m3-m4-335i-435i-x6","provider":"Nineteen72 Performance","version":"1.0","type":"link"}