{"type":"firestarter.listing","listing":{"id":"lst_YHVNs6aa","product_name":"South Bend Clutch & Flywheel Kit B5/B6 A4 & B5 Passat 1.8T (Stage 4 Extreme)","category":"Transmission/Driveline","description":"STAGE 4 EXTREME  This is a \"build to order\" clutch kit intended for cars with HP modifications exceeding the stage 3 parameters. The Race Engineered pressure plate is modified for maximum plate load. The discs are puck design with sprung and un-sprung options. Friction material options include Sintered Iron and Graphite Impregnated Ceramic. Engagement characteristics can be abrupt. Hydraulic systems may need enhancing for proper clutch separation. Single mass steel SFI approved flywheels are required for safety. Torque ratings are calculated at time of ordering.  FLYWHEEL FEATURES  Flywheels manufactured by SBC are made from low carbon, hot rolled steel that is highly resistant to warping and perfectly suited for the friction materials mated to them. Single mount CNC machining guarantees precise tolerances and perfect balance exceeding O.E. specifications. Extensive field testing has been done to determine the proper weight for each specific vehicle and to ensure smooth operation, safety and durability under extreme operating conditions. ","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/products/ced1202a93952d3fef46d2b7eed2ef34_b624086c-0b64-4b84-9e8d-7e9b44e0a1fd.jpg?v=1528354183"],"price":1562.55,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:25.952Z"},"share_url":"https://firestarter.network/l/lst_YHVNs6aa","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_YHVNs6aa' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy South Bend Clutch & Flywheel Kit B5/B6 A4 & B5 Passat 1.8T (Stage 4 Extreme)' and a budget_max comfortably above $1562.55 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."]}}