{"product_id":"girodisc-bmw-g8x-rear-rotors","title":"Girodisc BMW G8X M2, M3, M4 2-Piece Rear Rotors","description":"\u003cp\u003eGirodisc 2-piece rear rotors for every application in this range, in one listing. Choose your car in the \u003cstrong\u003eApplication\u003c\/strong\u003e drop-down, then choose \u003cstrong\u003eFull rotors with hats\u003c\/strong\u003e (complete assemblies, ready to install) or \u003cstrong\u003eReplacement rings only\u003c\/strong\u003e if you already run Girodisc hats.\u003c\/p\u003e\u003ch3\u003eApplication guide\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003cth\u003eFull rotors (pair)\u003c\/th\u003e\n\u003cth\u003eRings only (pair)\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eG80 M3 \/ G82 M4 \/ G87 M2 – iron brakes (370 mm)\u003c\/td\u003e\n\u003ctd\u003eA2-282 – $1,350\u003c\/td\u003e\n\u003ctd\u003eD2-282 – $840\u003c\/td\u003e\n\u003ctd\u003eDirect replacement for the factory 370 mm rear rotors on cars without carbon-ceramic brakes. Sold in pairs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eG80 M3 \/ G82 M4 \/ G87 M2 – carbon-ceramic → iron conversion (380 mm)\u003c\/td\u003e\n\u003ctd\u003eA2-322 – $1,350\u003c\/td\u003e\n\u003ctd\u003eD2-322 – $880\u003c\/td\u003e\n\u003ctd\u003eReplaces the factory 380 mm carbon-ceramic rear rotors with 2-piece iron while keeping the factory calipers. Use the factory iron-brake pad shape.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eCorrect fitment depends on the brake package your car left the factory with (rotor diameter, iron vs. PCCB \/ carbon-ceramic, caliper colour). If you are unsure, contact PHD Racing with your VIN before ordering and we will confirm the part number.\u003c\/p\u003e\u003ch3\u003eGirodisc 2-piece floating rotors\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIron friction ring on a 6061-T6 aluminum hat – cuts unsprung and rotating weight vs. the one-piece factory disc.\u003c\/li\u003e\n\u003cli\u003eCurved, directional cooling vanes act as a centrifugal pump, pulling air through the disc under repeated hard stops.\u003c\/li\u003e\n\u003cli\u003ePin-drive float system with anti-noise spring washers: the ring grows with heat and self-centers without the cold rattle of a race-style floating rotor.\u003c\/li\u003e\n\u003cli\u003eRings cast from Girodisc's own high-carbon iron and machined in-house in Bellingham, WA; hats machined from US-sourced aluminum.\u003c\/li\u003e\n\u003cli\u003eKeeps the factory calipers, brake bias and ABS behaviour. Sold in pairs, directional (left\/right).\u003c\/li\u003e\n\u003cli\u003eServiceable: when the rings wear out, order the \u003cem\u003eReplacement rings only\u003c\/em\u003e variant and keep your Girodisc hats. Replacement rings fit Girodisc hats only.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eProduct photos are supplied by Girodisc and are representative of the product family; hat design and ring size vary by application.\u003c\/em\u003e\u003c\/p\u003e","brand":"Girodisc","offers":[{"title":"G80 M3 \/ G82 M4 \/ G87 M2 – iron brakes (370 mm) \/ Full rotors with hats","offer_id":48116450165010,"sku":"A2-282","price":1350.0,"currency_code":"USD","in_stock":true},{"title":"G80 M3 \/ G82 M4 \/ G87 M2 – iron brakes (370 mm) \/ Replacement rings only (Girodisc hats)","offer_id":52753117970706,"sku":"D2-282","price":840.0,"currency_code":"USD","in_stock":true},{"title":"G80 M3 \/ G82 M4 \/ G87 M2 – carbon-ceramic → iron conversion (380 mm) \/ Full rotors with hats","offer_id":67576002085138,"sku":"A2-322","price":1350.0,"currency_code":"USD","in_stock":true},{"title":"G80 M3 \/ G82 M4 \/ G87 M2 – carbon-ceramic → iron conversion (380 mm) \/ Replacement rings only (Girodisc hats)","offer_id":67576002117906,"sku":"D2-322","price":880.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0274\/5502\/9357\/files\/408mm72v__90679_337b7165-08b4-46ec-b513-20bd2ffbe876.jpg?v=1708966302","url":"https:\/\/phdracing.store\/products\/girodisc-bmw-g8x-rear-rotors","provider":"PHD Racing","version":"1.0","type":"link"}