{"type":"firestarter.listing","listing":{"id":"lst_ERNNtfn_","product_name":"Valvetronic Designs Audi RS5 B9 Valved Sport Exhaust System","category":"Cat Backs","description":"Audi B9 RS5 Valved Exhaust System\nFull T304 Stainless Steel System with Electronic Valve Control\n\nOverview\nThe Audi B9 RS5’s 2.9L twin-turbo V6 is a powerhouse—but the factory exhaust hides much of its true character behind heavy, restrictive components. The Valvetronic Designs Full Valved Exhaust System unleashes the car’s full vocal potential, delivering an aggressive, motorsport-inspired tone when desired, and quiet refinement when needed.\nUnlike typical aftermarket setups requiring multiple parts from different vendors, our system is a complete, single-package solution—from the OEM or aftermarket downpipes all the way to the exhaust tips. No more combining a cat-back from one brand with resonator sections from another—this is a true one-stop upgrade.\nWith the valves open, the RS5 gains a sharper tone, aggressive overrun crackles, and a commanding presence. Close the valves, and the car returns to near-stock quietness, making it ideal for both spirited driving and daily use.\n\n\nWhy It Works\n\n\nFull-System Design: Replaces the need for mixing exhaust components from different brands.\n\n\nElectronic Valve Control: Instantly switch between aggressive and refined exhaust modes.\n\n\nOptimized Flow: Mandrel-bent construction improves performance across the rev range.\n\n\n\nSound & Control\n\n\nValves Open: Bold, aggressive tone with pronounced overrun on deceleration.\n\n\nValves Closed: Quiet, comfortable OEM-like sound for everyday driving.\n\n\nValve Delete Recommended: OEM valves can activate unexpectedly; we recommend installing a valve delete module for optimal function.\n\n\n\nConstruction & Options\n\n\nMaterial: T304 stainless steel for durability and corrosion resistance.\n\n\nWeight Savings: 16.3 lb lighter than OEM.\n\n\nCraftsmanship: Precision TIG welds and fully mandrel-bent tubing for strength and maximum flow.\n\n\nTips: Includes premium exhaust tips for a refined performance finish.\n\n\n\nFitment\n\n\n2018–2024 Audi RS5 Coupe (B9)\n\n\n2018–2024 Audi RS5 Sportback (B9)\n\n\n\nInstallation ","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405533.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405532.webp?v=1781117255","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405534.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405535.webp?v=1781117255","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405536.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405537.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405538.webp?v=1781117255","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405541.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405542.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405544.webp?v=1781117255","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405545.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405546.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405547.webp?v=1781117255","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405549.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405550.webp?v=1781117255","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405551.webp?v=1781117256","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/A7405555.webp?v=1781117255"],"price":2999.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:20.057Z"},"share_url":"https://firestarter.network/l/lst_ERNNtfn_","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_ERNNtfn_' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Valvetronic Designs Audi RS5 B9 Valved Sport Exhaust System' and a budget_max comfortably above $2999.99 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."]}}