{"product_id":"girodisc-bmw-g8x-2-piece-slotted-rear-iron-rotor-conversion","title":"GiroDisc 2-Piece Slotted Rear Iron Rotor Conversion - BMW M3 \/ M4 G8x 2021-2025","description":"\u003cp\u003e\u003cstrong\u003eFitment Note:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse these rotors with the factory iron pad shape.\u003c\/p\u003e\n\u003cp\u003eThese GiroDisc 2-piece rotors are a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edirect replacement for the 380mm carbon ceramic rear rotors\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon the BMW G8X M3 \u0026amp; M4. Our 2-piece, fully floating assemblies utilize the factory calipers and require no modifications other than switching the rotors and pads. These rotors use the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efactory iron pad shape with the carbon ceramic calipers\u003c\/strong\u003e. Please contact us if you need help finding pads.\u003c\/p\u003e\n\u003cp\u003eThe rotor rings are machined from a proprietary casting made of high-carbon iron formulated to GiroDisc’s specifications. This superior metallurgy results in a rotor that holds up better, and the 72 curved vanes act as a centrifugal pump pulling air in through the hub to effectively cool the rotors under hard use. The 2-piece design means a reusable hat which can be attached to new rings (part number D2-322) when they need to be replaced.\u003c\/p\u003e\n\u003cp\u003eAll major components including the hats, rotor rings, and drive pins are manufactured in-house at our facility in Bellingham, WA from domestically sourced materials. The hat is made from 6061-T6 aluminum and coated in a black anodize finish. The drive pins are made from a high-strength steel alloy and cadmium-plated for corrosion resistance. All rotors are assembled with spring clips and Belleville washers for race-ready float while also being street-friendly with no noise from loose hardware.\u003c\/p\u003e\n\u003cp\u003eThe minimum thickness at which we recommend replacing these rings is 26mm. We also recommend replacing them if a crack leads to the edge of the ring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSold and priced per pair.\u003c\/strong\u003e\u003c\/p\u003e","brand":"GiroDisc","offers":[{"title":"Default Title","offer_id":49179981840670,"sku":"GIRA2-322","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2076\/8493\/files\/e7d5d547a8f450fb36f2f399ee0df94dL_5bdcd8d5-a335-486d-be69-cf09991c9e7a.jpg?v=1742553388","url":"https:\/\/pattersonperformanceparts.com\/products\/girodisc-bmw-g8x-2-piece-slotted-rear-iron-rotor-conversion","provider":"Patterson Performance Parts","version":"1.0","type":"link"}