{"type":"firestarter.listing","listing":{"id":"lst_NoWxtLXg","product_name":"Tech-53 Rear Subframe Bushing Kit E46 & Z4","category":"Bushings","description":"Tech-53 rear sub-frame bushing kits have been tested on track for a few years already; our rear subframe bushing kit, is made to tight tolerances, and top-quality materials. These E46 bushings are made of Delrin and go through very tight quality control. This enables you to have no slop after install. Our internal sleeves are made of strong and lightweight 6061-T6 aircraft grade aluminum.\nThese bushings are made for the track, drift, and hardcore driving, giving instant feedback of the rear end of the car to the chassis. The Delrin material is resilient, but not enough to produce flex, and keeps your car’s geometry where it should be.\nLifetime limit warranty.\n \nThis item fits:1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M32001-2006 E46 BMW 330i 330ci2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe\nKit include 4x Subframe Bushing and 4 Stainless Steel washers.","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/RRSBFRME46BSHK-scaled_grande_9242c4e7-9c80-4b9c-a474-0b035072d719.webp?v=1713449034"],"price":344.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:20.529Z"},"share_url":"https://firestarter.network/l/lst_NoWxtLXg","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_NoWxtLXg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Tech-53 Rear Subframe Bushing Kit E46 & Z4' and a budget_max comfortably above $344.99 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."]}}