{"product_id":"iron-conversion-kit-for-ferrari-portofino-front-axle","title":"Iron Conversion Kit for Ferrari GTC4Lusso Front Axle","description":"\u003cp\u003e\u003cspan\u003eThe Girodisc system is a direct replacement for the OE disc however a different brake pad with an annulus (pad swept area) of 66mm or less must be used.  This is done to keep the rotor weight at a reasonable level.  If we manufactured a rotor with the same annulus as the OEM CCM rotors they would be far too heavy.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe necessary pad shape is very common and also found on the Nissan GT-R, Cadillac CTS-V and most AMG Mercedes equipped with 6 piston calipers.  If there is a specific pad compound you're after please contact us directly to provide the correct part numbers.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\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\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\u003eOnce the Girodisc system is in place, simply replace the cast iron rotor when needed.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eSold\/priced per pair.\u003c\/span\u003e\u003c\/p\u003e","brand":"GiroDisc","offers":[{"title":"Front Rotors + Race Brake Pads","offer_id":47665086496925,"sku":"A1-111+GP35-1382.17","price":2735.0,"currency_code":"USD","in_stock":true},{"title":"Front Rotors + Street Brake Pads","offer_id":47665086529693,"sku":"A1-111+GP10-1382.17","price":2535.0,"currency_code":"USD","in_stock":true},{"title":"Front Rotors","offer_id":47665086562461,"sku":"A1-111","price":1995.0,"currency_code":"USD","in_stock":true},{"title":"Race Brake Pads","offer_id":47665086595229,"sku":"GP35-1382.17","price":590.0,"currency_code":"USD","in_stock":true},{"title":"Street Brake Pads","offer_id":47665086627997,"sku":"GP10-1382.17","price":550.0,"currency_code":"USD","in_stock":true},{"title":"Replacement Rotors","offer_id":47665086660765,"sku":"D1-111","price":1050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/0287\/5805\/files\/Screenshot2026-02-09140327.png?v=1770674718","url":"https:\/\/formuladynamics.com\/products\/iron-conversion-kit-for-ferrari-portofino-front-axle","provider":"Formula Dynamics","version":"1.0","type":"link"}