{"type":"firestarter.listing","listing":{"id":"lst_q5Wo6M_q","product_name":"APR Iridium Pro Spark Plugs - 12x26.5x14mm - Heat Range 10","category":"Spark Plug","description":"APR Iridium Pro Spark Plugs are the excellent upgrade for tuned engines. Our spark plugs are made from Iridium, which is one of the strongest materials you can use in this type of application. They run cooler, resist preignition, last longer than other materials with higher melting points, and even require less voltage to produce a strong spark. The electrode is harder and stronger than other materials and with its copper core can dissipate heat more easily, is better protected from melting, cracking, and other limitations found with standard plugs. These plugs were designed for use on tuned and higher output vehicles that benefit from a plug cooler than the factory heat range. They are great for high boost, high cylinder pressure, high cylinder temperatures, and high power situations, and they pair nicely with a set of APR ignition coils, where applicable.\nFeatures:\n\nHeat range 10 spark plug (Similar: Bosch 2, Brisk 8, Denso 31, and NGK 10)\n152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum.\nStronger than copper and platinum\nDesigned for high performance / tuned vehicle applications\nNon-projected insulator design\nLower required supplied voltage\nCooler operating temperature than stock plugs\nOptimized electrode design for hard to ignite fuels, such as ethanol\nResists preignition better than stock plugs\nPerfect for upgraded APR vehicles\nAn excellent match for APR ignition coils\nThread reach: 26.5mm\nThread diameter: 12mm\nHexagon: 14mm\nSeat Type: Gasket\nInstall Torque: 17 Nm\nInsulator Material: Ceramic\nSupplied Gap: .55mm +- .05mm\n2 steps colder than OEM (4.0T EA825)\n1 step colder older than OEM (2.9T/3.0T EA829, 2.0T/2.5T/3.0T/3.7T 9A2)\nMade in the EU\n","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/3d0bda24ad92a990e211dff3a67172abc873d013.webp?v=1745340502","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/de4c5842937645fb435730385e5c7b884d0fc555.webp?v=1745340502","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/3dbf9c3169aa3cb70ce1dc93d313c7a232522af0.webp?v=1745340502","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/cfb9ca7e4c1e9c8d50cb479fb29eedceaf60ef33.webp?v=1745340502","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/0ac251cdd3aad11aea2a7d761046bd28ae20b727.webp?v=1745340502"],"price":24.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:22.027Z"},"share_url":"https://firestarter.network/l/lst_q5Wo6M_q","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_q5Wo6M_q' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy APR Iridium Pro Spark Plugs - 12x26.5x14mm - Heat Range 10' and a budget_max comfortably above $24.95 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}