{"type":"firestarter.listing","listing":{"id":"lst_ob6zUgEA","product_name":"Alcon BMW F8X 4 Piston 355x28mm Rear Race Kit - Anodized","category":"Brake Kit","description":"Key features &amp; benefitsPro-System rotors, hats &amp; hardware – made in USA:• All Pro-System rotors are machined at our facility in Mooresville, North Carolina from specially formulated grey cast iron providing the best in thermal stability, friction coefficient and heat transfer characteristics.• Dyno-bedded rotors and pads• Precision machined and anodized aluminum hats and brackets• Fully floating rotor attachment with anti-rattle clips• Utilizes stock park brake• All kits are supplied with high performance brake pads.• Added value, most of our competitor's kits have a similar cost but brake pads, anti-rattle clips and bedding are not included. However, these are all included with in a Pro-System brake kit.\nAlcon calipers:• Forged aluminum calipers used in top level pro racing• Aerospace grade aluminum alloy provides high strength and light weight• 4 piston• High temperature seals• Piston diameter optimized for use with stock master cylinder, booster and ABS• Fully compatible with aftermarket ABS systems• Staggered piston diameters reduce pad taper• Bolted pad retainer to increase stiffness• Quick change pads without removing calipers• Stainless steel pistons\n \nINCLUDES:\nLeft Caliper CAR4949A*06PESLL (1) \nRight Caliper CAR4949A*06PESRL (1) \nPads \nLeft Rotor ROY.101291 (1) \nRight Rotor ROY.101292 (1) \nLeft Bracket BRT.101281 (1)\nRight Bracket BRT.101282 (1)\nStud STT.101276 (4) \nBrake Lines BRN.101304 (2)\n \n \n \nFits: 2014 to 2018 F80 M3, F82 M4 to M87 M2","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/BRK200510EDIT_1024x1024_e9a0983c-dfce-43e4-9b6d-961b2c215131.webp?v=1766417445"],"price":5129.49,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:22.672Z"},"share_url":"https://firestarter.network/l/lst_ob6zUgEA","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_ob6zUgEA' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Alcon BMW F8X 4 Piston 355x28mm Rear Race Kit - Anodized' and a budget_max comfortably above $5129.49 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."]}}