{"type":"firestarter.listing","listing":{"id":"lst_6gxLfoj-","product_name":"IE Catback Exhaust System For Audi B9 A4","category":"Catback Exhaust","description":"Details\n\nGiven the nature of the Audi A4 4-cylinder 2.0T, iE engineers had to do a little bit more “voice coaching” to bring out all the roars and rumbles in all the right places. It wasn’t an easy ask, but the end result is a thing of beauty. They replaced that underwhelming stock sound with a more muscular tone. DroneTrap technology smashes irritating drone sound waves so you can launch more of your A4’s spirit animal, extra spicy edition, into the world. This catback also features reinforced piping, boxed hangers, high-flow pipe design, and finely tuned mufflers for long life and unrestrained fun.\n \nLEADING FEATURES\n\n\nSay it loudly -Aggressive, yet refined exhaust note\n\nDroneTrap Technology -Proprietary no-drone resonator\n\n90mm twin exhaust tips -Motorsport look\n\nHigh flow design -Mandrel bent stainless 2.5” tubing\n\nEasy Install -No cutting, no welding, no hassle\n\nBolt-on fit -Fits stock and iE ProCore downpipe\n\n\n\niE DRONETRAP ADVANTAGE\nDroneTrap is iE's defense against the waves that kill your “exhaust note listening experience.” This proprietary technology captures and mutes soundwaves that cause annoying drones, leaving only the good stuff you’re into—a full, rich, audacious call of the wild.\n\nTWIN SLASH-CUT TIPS\nLift your A4's style to new heights and look good doing it with these large 90mm exhaust tips. The slash-cut tips feature a motorsport-inspired brushed finish with adjustable depth, great for dialing your aggressive looks up or down. \n\nBUILT TO ENDURE\nDelivering head-turning exhaust sound is just one part iE's catback game. There’s plenty left to say in the design and engineering department too. This exhaust is made from corrosion-resistant, mandrel-bent T304L stainless steel with strong, multi-point, boxed exhaust hangers for long life and reinforced with bridged sections to prevent rattles. Always sound your best with the leak-free, OE-quality exhaust clamps.\n\nENGINEERING THE PERFECT FIT\n3D scanning and cutting-edge software give iE engineers a high","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_01_720x_3acd77b4-bca8-4b59-87b8-defc77fd6bdd.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_02_720x_15ffd4a6-ecd2-4434-89a1-8cd21527935c.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_03_720x_0c353949-cc96-4488-b853-007397ab31dd.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_04_720x_5a1b2952-6c1a-43e7-92c5-5cda5fe1d668.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_05_720x_15bc3e00-2a13-4982-b005-6eb3b74a3b32.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_06_720x_0539fa0b-7a98-4762-af1a-3377c3a397c2.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_07_720x_454c6080-8320-4298-8058-2d4f6ba2c450.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_08_720x_8c5f5def-8f06-4b39-985f-7986d70c139e.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_09_720x_f51bd520-2d03-4326-ae24-b7b9f05b8384.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_10_720x_2132fc13-da68-4076-922c-bc93bbadcbf9.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_11_720x_103c9060-52f0-44d5-947d-e17422d52ecd.webp?v=1745245348","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK8_12_720x_c47911a9-5d1e-4f11-8a02-9114fe4c2c9a.webp?v=1745245348"],"price":1649.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:28.643Z"},"share_url":"https://firestarter.network/l/lst_6gxLfoj-","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_6gxLfoj-' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy IE Catback Exhaust System For Audi B9 A4' and a budget_max comfortably above $1649.99 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."]}}