{"product_id":"fs-por-9912gt3-br","title":"Porsche 991.2 GT3 GiroDisc Upgraded Iron Brake Rotors (2017+)","description":"\u003cdiv\u003e\n\u003cspan style=\"color: #000000;\"\u003eThe Girodisc system is a direct replacement for the OE disc on the 991 GT3 and GT3 RS with OEM iron rotors. No modifications are necessary, allows use of factory unmodified pads unlike most aftermarket solutions for this application. The disc will bolt directly to the car and work with OE calipers perfectly. By upgrading your brakes with lightweight high performance replacements as opposed to a big brake kit, your factory bias is maintained as well as your ABS efficiency.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003eThe central hat section of our rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from our own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003eThe rotor and hat have a floating mount system, which utilizes 12 high strength alloy steel drive pins, manufactured by Girodisc in the USA to our own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking actions while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #000000;\"\u003eOnce the Girodisc system is in place, simply replace the cast iron rotor when needed.\u003c\/span\u003e\n\u003c\/div\u003e \u003cp\u003e\u003cspan style=\"color: #000000; font-size: small;\"\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eFits all Porsche 991.2 GT3 (2017+)\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eLighter than stock brakes\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003ePerfect solution for vehicles seeing track use - saving you from costly OE ceramic replacements\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eCaliper spacers are included to accommodate the larger 380mm front rotors.\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eRear rotors are OEM size\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eDirect factory replacement\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eImproved braking performance\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eReduced unsprung weight\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eIncreased rotor life\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eGreater cooling efficiency\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003eRetains factory e-brake\u003c\/span\u003e\u003c\/li\u003e \u003cli\u003e\u003cspan style=\"color: #000000;\"\u003ePremium grade; made in U.S.A.\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003eNote: \u003c\/strong\u003e\u003c\/span\u003eWhen converting from carbon ceramic brakes to GiroDisc iron rotors we STRONGLY recommend replacing all four rotors in order to maintain the factory brake bias and controlled braking in all driving conditions. \u003c\/p\u003e","brand":"GiroDisc","offers":[{"title":"Front Rotors (Pair)","offer_id":45873294704805,"sku":"FS.POR.9912GT3.BR-1","price":2231.93,"currency_code":"USD","in_stock":true},{"title":"Rear Rotors (Pair)","offer_id":45873294737573,"sku":"FS.POR.9912GT3.BR-2","price":2231.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0533\/0904\/6949\/files\/girodisc-porsche-991.2-gt3-girodisc-upgraded-iron-brake-rotors-2017__97322.jpg?v=1753487824","url":"https:\/\/pilotoproject.com\/products\/fs-por-9912gt3-br","provider":"Piloto Project","version":"1.0","type":"link"}