{"type":"firestarter.listing","listing":{"id":"lst_xugFzL_A","product_name":"Merc Racing Upgrade Heat Exchanger for Audi S4, S5, S6, S7, A6, A7, Q5, SQ5 - Polished","category":"3.0T Cooling Upgrades","description":"The Audi air to water-cooled applications required an advanced configuration that further expands on their cooling system and addressed higher cooling capacity and water volume.\nWe took this challenge seriously and with our help from Audi owners/friends, we now provide you a cooling solution that performs amazingly on your Stock, upgraded or higher boost tuned applications.\nOur unique design uses the entire area of these large vehicles to provide you with excellent cooling capacity, higher water volume, and amazing results.\nAt the point of the invention and taking to market, no other heat exchangers in the market were designed this way. This design allows for water to stay on the cooling stage longer and dissipate heat longer than other normal single and dual-pass systems. Our multiple-pass system provides a slower temperature rise and faster recovery.\n\nHigh-density fin core for excellent heat dissipation.\nPurges all air as it runs.\nBleed port included for assisting air removal during installation.\nAll Aluminum hand tig welded construction\nSide Mounting brackets and bolts for crash bar install - Included\nSelf-tapping screws for mounting included\n3/4\" high flow tubes\nDimensions: W 23\" x H 17\" x D 2.4\" not including side tubes.\nProven to be one of the most efficient heat exchangers in the market yet best priced as well!\n\nNotes and Install References:\n\nDrive select, what to expect: https://youtu.be/qOpBNXkxeZ8?t=227\n\nB8 Install review by Vancity Audi: https://www.youtube.com/watch?v=80jnlqNax6Q\n\nA6 C7 Install: https://youtu.be/yiyz6q5FTVA\n\n\nPlease Note:\n\nVehicles equipped with a factory dynamic steering cooler must relocate this loop cooler. We recommend purchasing the Compact Fluid Cooler to move this steering cooling system. The stock factory dynamic steering cooler is visible through the top of the grill.\nVehicles other than the B8/B8.5 S4 may not be able to utilize the provided air diverter plates due to fitment.\n\n \n","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/M3-Polished-1.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/M3-Polished-3.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/M3-Polished-2.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/M3-Polished-4.jpg?v=1768411061","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/EditedExport-3-16-14_9e0cf461-5848-4c30-95e4-c773c2fb7954.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/Installed_0595f802-af04-479a-81cd-8282c597aa77.jpg?v=1768411057"],"price":539.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:22.646Z"},"share_url":"https://firestarter.network/l/lst_xugFzL_A","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 ","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_xugFzL_A' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Merc Racing Upgrade Heat Exchanger for Audi S4, S5, S6, S7, A6, A7, Q5, SQ5 - Polished' and a budget_max comfortably above $539.95 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."]}}