{"type":"firestarter.listing","listing":{"id":"lst_gXIpDRth","product_name":"Merc Racing High Coolant Capacity heat exchanger for Audi S6, S7, A7, A6, Q5, SQ5, S4, S5","category":"3.0T Cooling Upgrades","description":"The Audi air to water-cooled turbo and supercharged applications required an advanced configuration that further expands on their cooling system and addressed higher cooling capacity and water volume than any other product.\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 patented design uses the entire area of these large vehicles to provide you with excellent cooling capacity, a ONE-Gallon water volume, and amazing results.\nAt the point of design 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.\n\nHigh-density fin core for excellent heat dissipation.\nPurge air easier with included bleed port. (thread size 1/4\" npt)\nBleed port included for assisting air removal during installation.\nDurable black satin/matte coating finish on end tanks for long-life durability and resistance to road debris, great finish, easy to clean, corrosion resistance, and long life.\nAll Aluminum hand tig welded construction\nSide Mounting brackets and bolts for crash bar install - Included\nSelf-tapping screws for mounting included\n3/4\" Tubes\nDimensions: W 24\" x H 18\" 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\nINSTALLATION NOTES:https://mercracing.net/mercracing-audi-heat-exchanger-tubing-install-notes/\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/M6-Black-1.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/M6-Black-2.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/M6-Black-3.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/06-M6-HX_a8a146b9-ab50-44d5-a285-5f4dceac1d01.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/04-M6-HX_232617f3-5916-4ace-8af6-71544e6ce339.jpg?v=1768411058","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/Installed_5e201d24-75b6-4f2e-aee6-49f8c5318327.jpg?v=1768411057"],"price":639.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:22.643Z"},"share_url":"https://firestarter.network/l/lst_gXIpDRth","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_gXIpDRth' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Merc Racing High Coolant Capacity heat exchanger for Audi S6, S7, A7, A6, Q5, SQ5, S4, S5' and a budget_max comfortably above $639.95 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."]}}