{"product_id":"free-flow-headers-for-porsche-991-1-991-2-gt3","title":"Valvetronic Free Flow Headers — Porsche 991 GT3","description":"\u003cp\u003eValvetronic's free flow headers unlock the 991 GT3's full sonic and breathing potential. Purpose-built for the naturally aspirated flat-six, these headers eliminate restrictive factory geometry while maintaining the structural integrity and heat management your engine demands.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat sets them apart:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMandrel-bent 304 stainless construction for longevity and flow efficiency\u003c\/li\u003e\n\u003cli\u003eOptimized collector design that reduces scavenging losses and improves mid-range response\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on fitment—no cutting, no welding, no guesswork\u003c\/li\u003e\n\u003cli\u003eDyno-validated gains across the powerband; expect 8–12 hp and noticeable torque throughout\u003c\/li\u003e\n\u003cli\u003eWorks seamlessly with factory and aftermarket exhaust systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 991 GT3 is engineered to reward precision tuning. These headers are the foundation of any serious breathing upgrade. Whether you're tracking or simply want your engine to sound and perform as it was intended, Valvetronic delivers the engineering credibility and fit quality that separates real gains from marketing claims.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e Porsche 991.1 and 991.2 GT3 (naturally aspirated models only).\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":53463882170581,"sku":"POR.991.GT3.FFH","price":1999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0775\/5179\/6437\/files\/A7405464_ee71c610-5bad-40fb-af99-a8e1f073dc8b.jpg?v=1774017092","url":"https:\/\/geniusloci.app\/products\/free-flow-headers-for-porsche-991-1-991-2-gt3","provider":"Genius Loci","version":"1.0","type":"link"}