{"title":"Porsche 911 GT3 \/ GT3 RS (991.1, 991.2)","description":"\u003cp\u003eFor the Porsche 911 GT3 and GT3 RS (991.1 and 991.2) we supply the valved sport exhaust in T304 stainless steel or Grade 5 titanium, on its own or with free flow race headers, and the free flow headers as a separate product. Everything ships directly from the Valvetronic Designs factory in Boyertown, Pennsylvania.\u003c\/p\u003e","products":[{"product_id":"porsche-free-flow-991-1-991-2-gt3-headers-spruitstukken","title":"Porsche Free Flow 991.1\/991.2 GT3 Headers","description":"\u003cp\u003eFree flow headers for the Porsche 911 GT3. These headers from Valvetronic Designs replace the stock units and give the exhaust gases a freer path from the cylinder head.\u003c\/p\u003e\n\u003ch3\u003eFitment and homologation\u003c\/h3\u003e\n\u003cp\u003eThis product fits the Porsche 911 GT3 with chassis code 991.1 and 991.2.\u003c\/p\u003e\n\u003cp class=\"vtd-homologatie\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e this product has no EC or ECE type approval and carries no E-mark.\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default","offer_id":54637323649361,"sku":"POR.991.GT3.FFH.HS","price":2700.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1072\/2816\/8529\/files\/A7405464_ee71c610-5bad-40fb-af99-a8e1f073dc8b.jpg?v=1787228096"},{"product_id":"porsche-gt3-rs-991-1-991-2-sportuitlaat-met-kleppen","title":"Porsche GT3\/RS 991.1\/991.2 Valved Sport Exhaust System","description":"\u003cp\u003eA year and a half of development went into this system, and you hear it at the top of the rev range. With the DFI engine the 991 GT3 got a six-cylinder boxer that pulls to 9,000 rpm, but from the factory it misses the rawness and the F1 style tone. The system has 2.5 inch tubing, a pressed X-pipe with a large cross section and extra runner sections that lengthen the path of the exhaust gas, together good for the high motorsport tone.\u003c\/p\u003e\n\u003ch3\u003eSound and control\u003c\/h3\u003e\n\u003cp\u003eThe sound is built on the example of the Porsche RSR race car. With the valves open you get flames on upshifts and a crescendo that keeps building to the limiter, while with the valves closed the volume is held back for long highway runs and early starts, with no drone audible in the cabin. Combine it with the free flow headers and the whole thing moves further into RSR territory.\u003c\/p\u003e\n\u003ch3\u003eHow it sounds\u003c\/h3\u003e\n\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/EiJs76C8XCI\" title=\"Valvetronic Designs on YouTube\" style=\"width:100%;aspect-ratio:16\/9;height:auto;border:0;display:block;margin:0 0 24px\" loading=\"lazy\" allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003ciframe src=\"https:\/\/www.youtube-nocookie.com\/embed\/gM7UK_R_9rs\" title=\"Valvetronic Designs on YouTube\" style=\"width:100%;aspect-ratio:16\/9;height:auto;border:0;display:block;margin:0 0 24px\" loading=\"lazy\" allow=\"accelerometer; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen\u003e\u003c\/iframe\u003e\n\u003ch3\u003eFitment and homologation\u003c\/h3\u003e\n\u003cp\u003eFits the Porsche 991 GT3, model years 2014 through 2019, and the Porsche 991 GT3 RS, model years 2016 through 2019, with chassis codes 991.1 and 991.2. The free flow race headers are a version of their own, aimed at the highest performance and the best sound quality.\u003c\/p\u003e\n\u003cp class=\"vtd-homologatie\"\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e this product has no EC or ECE type approval and carries no E-mark.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully 2.5 inch, front to back\u003c\/li\u003e\n\u003cli\u003ePressed X-pipe with a large cross section\u003c\/li\u003e\n\u003cli\u003eExtra runner sections that lift the pitch\u003c\/li\u003e\n\u003cli\u003eVacuum operated valves that behave like the factory ones\u003c\/li\u003e\n\u003cli\u003eAvailable in T304 stainless steel or Grade 5 titanium\u003c\/li\u003e\n\u003cli\u003eHand-laid TIG welds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePart type\u003c\/th\u003e\n\u003ctd\u003eExhaust system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValve type\u003c\/th\u003e\n\u003ctd\u003eVacuum valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCylinders\u003c\/th\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModel years\u003c\/th\u003e\n\u003ctd\u003e2014 - 2019 Porsche 991 GT3 2016 - 2019 Porsche 991 GT3 RS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet weight (kg)\u003c\/th\u003e\n\u003ctd\u003e24.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet weight (kg)\u003c\/th\u003e\n\u003ctd\u003e24.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNet weight (kg)\u003c\/th\u003e\n\u003ctd\u003e24.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Valvetronic Designs","offers":[{"title":"Catback only \/ T304 stainless steel","offer_id":54637442793809,"sku":"POR.991.GT3.VSES.BR","price":5050.0,"currency_code":"EUR","in_stock":false},{"title":"Catback only \/ Grade 5 titanium","offer_id":54637442826577,"sku":"POR.991.GT3.VSES.TI","price":7395.0,"currency_code":"EUR","in_stock":true},{"title":"Catback with race free flow headers \/ T304 stainless steel","offer_id":54637442859345,"sku":"POR.991.GT3.VSES.FFH.BR","price":7395.0,"currency_code":"EUR","in_stock":false},{"title":"Catback with race free flow headers \/ Grade 5 titanium","offer_id":54637442892113,"sku":"POR.991.GT3.VSES.FFH.TI","price":9740.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1072\/2816\/8529\/files\/A7407701.jpg?v=1787228201"}],"url":"https:\/\/www.valvetronic-europe.com\/en\/collections\/porsche-911-gt3-991.oembed","provider":"Valvetronic Designs Europe","version":"1.0","type":"link"}