{"type":"firestarter.listing","listing":{"id":"lst_91d1PRc2","product_name":"IE Performance Downpipe For Audi B9 S4 & S5 3.0T","category":"Downpipes","description":"Details\n\nLEADING FEATURES\n\nRequired to support hybrid turbo ECU calibrations\nHigh-flow design to support full-bolt on stage 2 power capabilities\nRemoves any downpipe restrictions for full available power\nIncreases exhaust sound with improved engine & turbo notes\nImproves turbocharger efficiency & speeds up turbo spool\nThick-wall casting reduces radiant heat in the engine bay\n200 CPSI performance high-flow catalytic converter\n304 investment cast downpipe body\n304 stainless steel downpipe legs & CAT\nMassive 6\" downpipe body to dual 2.5\" downpipe legs\nHand TIG-welded for superior reliability and surface finish\nDirect bolt-in factory replacement\nCNC machined v-band and bolt flanges for leak-free operation\nInstalls to the stock exhaust or IE Midpipes upgrade\n\n*Requires Stage 2 or hybrid turbo ECU tuningMOTORSPORT SOUNDIE's unique thick-wall investment castings produce an aggressive, drone-free exhaust note without the \"tinny\" sound typical on most full stainless body aftermarket options. Enjoy not only a louder exhaust but one with improved engine and turbo notes that will deliver miles of smiles.PERFECT FITThe B9 3.0T hot-v style engine has a unique center-mounted turbo with a large downpipe that quickly splits into twin-sided exhaust sections. This challenging configuration requires exacting alignment to avoid install hassles, rattling, rubbing, and exhaust leaks. IE engineers utilize advanced 3D scanning technology and rapid prototyping to guarantee a flow-maximized design that exceeds even the factory fitment.200 CPSI CATALYTIC CONVERTERIE's downpipe includes a high-flow 200 CPSI catalytic converter. This performance CAT allows for full and unrestricted power from Stage 2 ECU tunes and hybrid turbo upgrades while reducing emissions output and eliminating unwanted smells and bumper stains found on cat-less designs.Catalytic converter warranty is only available for cusotmers running IE performance ECU software.HYBRID TURBO READYThe stock downpipe becomes a ","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_01.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_02.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_03.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_04.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_05.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_06.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_07.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_08.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_09.jpg?v=1745433995","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/IEEXCK3_10.jpg?v=1745433995"],"price":1099.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:28.845Z"},"share_url":"https://firestarter.network/l/lst_91d1PRc2","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_91d1PRc2' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy IE Performance Downpipe For Audi B9 S4 & S5 3.0T' and a budget_max comfortably above $1099.99 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."]}}