{"product_id":"girodisc-bmw-f8x-m2-m3-m4-380mm-rear-rotors","title":"GiroDisc BMW F8X M2, M3, M4 380mm Rear Rotors","description":"\u003cdiv itemprop=\"description\"\u003e \u003cdiv\u003e\u003ch2\u003eApplications\u003cbr\u003e\n\u003c\/h2\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eF8X \u003cspan style=\"font-weight: bold;\"\u003eM3\u003c\/span\u003e, \u003cspan style=\"font-weight: bold;\"\u003eM4\u003c\/span\u003e including CS with optional carbon ceramic brake package (gold calipers)\u003c\/li\u003e\n\u003cli\u003eF87 \u003cspan style=\"font-weight: bold;\"\u003eM2\u003c\/span\u003e, \u003cspan style=\"font-weight: bold;\"\u003eM2 Competition\u003c\/span\u003e \u0026amp; \u003cspan style=\"font-weight: bold;\"\u003eM2 CS\u003c\/span\u003e with red or silver calipers\u003c\/li\u003e\n\u003cli\u003eF87 \u003cspan style=\"font-weight: bold;\"\u003eM2 CS\u003c\/span\u003e with optional carbon ceramic brake package (gold calipers)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cspan style=\"font-weight: bold;\"\u003eIf your vehicle has blue calipers\u003c\/span\u003e, they require a \u003ca href=\"product.asp?itemid=6846\"\u003edifferent size of rotor available here\u003c\/a\u003e.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003eConverting from Carbon Ceramic Rotors\u003c\/h2\u003e\n\u003cdiv\u003eOur iron rotors replace the factory carbon ceramic rotors with no modifications necessary. We strongly suggest changing the pads at the same time to a material designed to work with iron rotors.\u003c\/div\u003e\n\u003cdiv\u003e\u003ch2\u003eBackground Information\u003cbr\u003e\n\u003c\/h2\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\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.\u003cbr\u003e\u003cbr\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.\u003cbr\u003e\u003cbr\u003eOnce the Girodisc system is in place, simply replace the cast iron rotor when needed. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14pt;\"\u003eSold\/priced per pair\u003c\/span\u003e\u003cbr\u003e \u003c\/div\u003e","brand":"GiroDisc","offers":[{"title":"Default Title","offer_id":67897385517301,"sku":"A2-220","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/6757\/6821\/files\/408mm72v__09015.1677861714.jpg?v=1793383687","url":"https:\/\/millaracing.com\/products\/girodisc-bmw-f8x-m2-m3-m4-380mm-rear-rotors","provider":"Millaracing","version":"1.0","type":"link"}