{"product_id":"ngk-laser-iridium-spark-plug-silzkar7b11-4-pack-for-subaru-legacy-2-5i-sport-2014-2-5l-2498cc","title":"NGK Laser Iridium Spark Plug SILZKAR7B11 (4 Pack) for Subaru Legacy 2.5i Sport 2014 — 2.5L\/2498cc","description":"\u003ch2\u003eNGK Laser Iridium Spark Plug SILZKAR7B11 — 4 Pack for Subaru Legacy 2.5i Sport (2014)\u003c\/h2\u003e\n\u003cp\u003eEngineered to perform like original equipment, NGK Laser Iridium plugs pair a hard iridium tip with precise ground electrode design. The result can be more consistent ignition across a wide range of driving conditions and a longer service life compared with standard plugs.\u003c\/p\u003e\n\u003cp\u003eIridium tip is six times harder than platinum, contributing to strong ignitability and a longer interval between replacements in typical DIS ignition systems. The design often includes a platinum pad on the ground electrode to promote even wear, helping the plug maintain reliable performance over time.\u003c\/p\u003e\n\u003cp\u003eIn the Subaru 2.5L 4-cylinder lineup, this plug is OE-engineered to fit the 18 mm thread, gasket seat, and 1.040 in reach. The copper core helps pull heat away from the tip, while a pure alumina silicate ceramic insulator maintains strength under higher engine temperatures. Three seals add resistance to leakage and contamination, helping maintain steady performance even after miles of operation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat you get in a 4-pack\u003c\/h3\u003e\n\u003cp\u003eThis kit delivers four identical units, ideal for a full tune-up or replacing plugs across multiple cylinders at once. Key design points aimed at reliability include:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTrivalent metal plating for corrosion resistance and easier removal\u003c\/li\u003e\n  \u003cli\u003eCorrugated ribs that reduce flashover risk in challenging ignition environments\u003c\/li\u003e\n  \u003cli\u003eExtended projected insulator for durability and effective heat transfer\u003c\/li\u003e\n  \u003cli\u003eGround electrode with a platinum pad for even wear in DIS ignition systems\u003c\/li\u003e\n  \u003cli\u003eResistor inside for EMI suppression\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eReal-world benefits to expect\u003c\/h3\u003e\n\u003cp\u003eResults depend on your vehicle and driving style, but you may experience smoother idle, easier cold starts, and steadier acceleration from a refreshed spark system. The 4-pack is designed to fit common Subaru configurations and helps streamline installation for maintenance or repairs.\u003c\/p\u003e\n\n\u003ch3\u003eWhy NGK for your Subaru\u003c\/h3\u003e\n\u003cp\u003eAs an OE-engineered option, NGK emphasizes reliability and compatibility with Subaru engines. The Laser Iridium family aims for longevity and consistent performance across many miles, with design choices that support efficient combustion and engine protection.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes NGK SILZKAR7B11 different from standard spark plugs?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The iridium tip delivers strong ignition and longer life, especially suitable for 4-cylinder Subaru engines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this 4-pack compatible with my Subaru Legacy 2014 2.5L?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It is OE-engineered for 2.5L Subaru 4-cylinder applications; verify fit with your vehicle VIN.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":42464462897237,"sku":"B07T6C2LD4","price":84.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/ngk-laser-iridium-spark-plug-silzkar7b11-4pack.jpg?v=1777981108","url":"https:\/\/plentytorque.co.uk\/products\/ngk-laser-iridium-spark-plug-silzkar7b11-4-pack-for-subaru-legacy-2-5i-sport-2014-2-5l-2498cc","provider":"PlentyTorque","version":"1.0","type":"link"}