{"type":"firestarter.listing","listing":{"id":"lst_GIwItifz","product_name":"APR 4.0T Mid-Muffler - Audi C7 S6/S7/RS7","category":"Exhausts","description":"\n\n\n\nThe APR Catback Exhaust System is available with and without a center muffler. This upgrade is customers who have purchased this system and would like to replace the center muffler with our straight pipe assembly.\n\nT304 stainless-steel construction\nArgon-back-purged TIG welding throughout\nDual 2.75\" mandrel-bent brushed tubing\nRugged and precise mounting brackets\nDirect fit to the APR Catback Exhaust System\nLow-profile design, suitable for lowered vehicles\nLarger diameter piping compared to stock\nIn-house design with world-class manufacturing and quality control\nEasy to install\n\n \nPlease Note:\n- Fits with APR C7 S6/S7/RS7 Catback System ONLY\n\n\n\n","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/e4713bcf183c3de43853f924a8740bc666882760.jpg?v=1742498012","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/098365d3443db2c342d151456dcb6826417a384c.webp?v=1742498012","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/42939e292b6cd0f975619cfdf0433eadd268c6b3.webp?v=1742498012","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/da0a18cfd10d23e206b5f0e220cf1d9d990114b3.webp?v=1742498012","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/6fc6db56d7eb6443bdb74346d48ba1bbe8029954.webp?v=1742498012","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/57652c7dd1afe7e1746eabfb8c522cc9b58b700b.webp?v=1742498012"],"price":972.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:21.999Z"},"share_url":"https://firestarter.network/l/lst_GIwItifz","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_GIwItifz' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy APR 4.0T Mid-Muffler - Audi C7 S6/S7/RS7' and a budget_max comfortably above $972.95 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."]}}