{"type":"firestarter.listing","listing":{"id":"lst_Cvbimi2I","product_name":"Soul Performance Porsche 718 GT4 RS / Spyder RS SOUL Competition Headers","category":"Exhaust","description":"For the standard 718 GT4, we offered both a catted and catless solution for a header replacement. In order to follow suit with the GT4 RS that would introduce necessary compromises–so we didn’t do it. Our Competition Headers maximize the design potential of that section of the GT4 RS, utilizing all the space available for longer tubing and an expanded merge collector to meet the 3-inch flowpath of the Over Axle Pipes.\nOur Competition Headers will deliver immediate increases in sound, power and response in an efficient and lightweight package.\nDETAILS+  Fits 718 GT4 RS / Spyder RS vehicles excluding Clubsport models+  Direct bolt-on installation, pairs with factory or upgraded Over Axle Pipes+  Weighs 4.5 lbs / 2 kg less than factory headers (17.75 lbs vs 22.2 lbs factory)+ All SOUL Performance Products exhaust components are backed by the industry’s first and finest Lifetime Warranty for both street and track use+ Designed and built in-house at our Willow Grove, PA facility\nDescription\nDEVELOPMENT AND TESTING: For the standard 718 GT4, we offered both a catted and catless solution for a header replacement. But in order to follow suit with the GT4 RS that would introduce necessary compromises–so we didn’t do it. Our Competition Headers maximize the design potential of that section of the GT4 RS, utilizing all the space available for longer tubing and an expanded merge collector to meet the 3-inch flowpath of the Over Axle Pipes.\n\nCONSTRUCTION:  Each set is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding (with ARCAL™ Prime argon gas) ensures proper weld penetration and longevity – crucial for durability on the track. Our cast head flanges allow for a smooth transition from exhaust ports into the runners. Water jet cut exhaust flanges are made to ISO 9001:2015 standards with tolerances of +/- 0.003 inches for extreme precision. We fabricate these headers using thick gauge aluminum fixtures which act as","images":["https://cdn.shopify.com/s/files/1/0024/4898/2060/files/SOUL-Performance-Products-718-GT4-RS-Headers-1-1.webp?v=1771617974","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/SOUL-Performance-Products-718-GT4-RS-Headers-1.webp?v=1771618036","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/Headers-vs-OEM.webp?v=1771618068","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/SOUL-Performance-Products-718-GT4-RS-Headers-3.webp?v=1771618068","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/SOUL-Performance-Products-718-GT4-RS-Headers-4.webp?v=1771618068","https://cdn.shopify.com/s/files/1/0024/4898/2060/files/SOUL-Performance-Products-718-GT4-RS-Headers-Production.webp?v=1771618068"],"price":3995,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T14:56:21.492Z"},"share_url":"https://firestarter.network/l/lst_Cvbimi2I","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_Cvbimi2I' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Soul Performance Porsche 718 GT4 RS / Spyder RS SOUL Competition Headers' and a budget_max comfortably above $3995.00 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."]}}