{"product_id":"girodisc-bmw-f80-f82-f83-f87-rear-380mm-2-piece-brake-discs-pair-m2-competition-m3-m4","title":"Girodisc A2-220 Rear 380mm 2-Piece Floating Slotted Brake Discs\/Rotors (Pair) for BMW F80 M3, F82\/F83 M4, F87 M2 Competition\/CS","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eRear 380 mm 2-piece floating slotted rotor upgrade for BMW F8X M cars\u003c\/h2\u003e\n\n  \u003cp\u003e\n    Unlock sharper braking, cooler operating temps and repeatable performance with this premium 2-piece rear rotor set from Girodisc. Engineered for the F8X platform with S55 power, the A2-220 kit replaces the factory 380 mm rear discs on the F80 M3, F82 M4, F83 M4 Convertible and F87 M2 Competition and CS. If you drive fast road, spirited B-road or track days, this is the rear brake upgrade that keeps pedal feel consistent and fade at bay while reducing unsprung mass.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Part number: \u003cstrong\u003eA2-220\u003c\/strong\u003e - sold as a matched pair for the rear axle.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eWhy enthusiasts choose this set\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTrue 2-piece design with a lightweight 6061-T6 aluminium hat and a high-carbon cast iron ring for quicker heat recovery and crisp modulation.\u003c\/li\u003e\n    \u003cli\u003eFloating hardware allows axial and radial movement so the rotor self-centres between pads, improving bite and reducing judder as temperatures climb.\u003c\/li\u003e\n    \u003cli\u003eCurved internal vanes act like a centrifugal pump to draw cooling air through the disc for better heat rejection and reduced fade on repeated heavy stops.\u003c\/li\u003e\n    \u003cli\u003ePrecision machined slotted faces help de-gas pads and maintain a clean, even contact patch. Zinc plating adds corrosion protection.\u003c\/li\u003e\n    \u003cli\u003eTwelve high-strength drive pins with cadmium plating, class 12.9 fasteners and dedicated anti-noise spring washers for reliable, quiet operation when cold.\u003c\/li\u003e\n    \u003cli\u003eServiceable assembly - when the rings are worn, keep the hats and simply fit new rings. Lower long-term running costs versus one-piece discs.\u003c\/li\u003e\n    \u003cli\u003eDirect bolt-on fit for the OE 380 mm rear setup. No additional brackets or lines needed.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eTechnical details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDiameter: 380.0 mm\u003c\/li\u003e\n    \u003cli\u003eNew thickness: 28.0 mm\u003c\/li\u003e\n    \u003cli\u003eMinimum thickness: 26.0 mm\u003c\/li\u003e\n    \u003cli\u003eOverall height: 64.9 mm\u003c\/li\u003e\n    \u003cli\u003eConstruction: 2-piece floating, vented, curved vane\u003c\/li\u003e\n    \u003cli\u003eRotor ring: proprietary cast iron\u003c\/li\u003e\n    \u003cli\u003eBell\/hat: 6061-T6 aluminium\u003c\/li\u003e\n    \u003cli\u003eFinish: slotted faces, zinc plated\u003c\/li\u003e\n    \u003cli\u003eManufactured by Girodisc, USA\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eFitment\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBMW F80 M3 Saloon, S55\u003c\/li\u003e\n    \u003cli\u003eBMW F82 M4 Coupé, including LCI, CS and GTS\u003c\/li\u003e\n    \u003cli\u003eBMW F83 M4 Convertible, including LCI\u003c\/li\u003e\n    \u003cli\u003eBMW F87 M2 Competition, S55\u003c\/li\u003e\n    \u003cli\u003eBMW F87 M2 CS, S55\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp\u003e\n    Note: Suitable with red or silver calipers. Also compatible with CS and GTS models specified with the optional carbon-ceramic brake package with gold calipers. Not suitable for models with blue Brembo calipers which use a different rear disc size.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eReal-world results\u003c\/h3\u003e\n  \u003cp\u003e\n    We have run this Girodisc rear setup on our own builds and customer cars with outstanding feedback. Drivers report stronger pedal confidence, stable braking on hot laps and impressive durability in mixed road and track use.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eInstallation and support\u003c\/h3\u003e\n  \u003cp\u003e\n    Professional fitting available at MJ Modifications in Warwickshire. For a quote or to book, email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e. We recommend pairing these rears with matching Girodisc fronts for balanced brake torque and thermal capacity across the axle set.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eOrder accuracy\u003c\/h3\u003e\n  \u003cp\u003e\n    We will verify fitment before dispatch. Please provide your UK registration or the last 7 digits of your VIN at checkout to confirm compatibility with your F80, F82, F83 or F87 M2 Competition\/CS.\n  \u003c\/p\u003e\n\n  \u003ch3\u003eSearch-friendly terms\u003c\/h3\u003e\n  \u003cp\u003e\n    BMW performance rear rotors, 380x28 rear brake kit, lightweight two-piece rear discs, floating rear rotor set, slotted rear discs upgrade, high performance rear braking for F80 F82 F83 F87, track day brake discs, fast road rear rotors, heat-resistant brake upgrade, curved vane vented rear discs, direct replacement rear brake rings and hats, serviceable rotor kit, cast iron rotor ring with aluminium bell, A2-220 rear rotor pair, M2C rear disc upgrade, M3 rear rotor replacement, M4 rear brake disc kit.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Girodisc","offers":[{"title":"Default Title","offer_id":56005727879554,"sku":null,"price":1500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/GirodiscBMWF80F82F83F87Rear380mm2-PieceBrakeDiscs-Pair_M2Competition_M3_M4_-1_1946x_ebdc2913-c523-4b94-b798-9c46d4559604.jpg?v=1764021908","url":"https:\/\/mjmodifications.co.uk\/products\/girodisc-bmw-f80-f82-f83-f87-rear-380mm-2-piece-brake-discs-pair-m2-competition-m3-m4","provider":"MJ Modifications","version":"1.0","type":"link"}