Paragon Automotive Products Limited
MMX 2-Piece Floating Rear Brake Discs (Rotors) Pair 370x24mm for BMW M3/M4 F80 F82 F83 (F8X)
MMX 2-Piece Floating Rear Brake Discs (Rotors) Pair 370x24mm for BMW M3/M4 F80 F82 F83 (F8X)
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Lightweight rear brake discs for BMW M3 and M4 (F80 F82 F83)
Upgrade your stopping power with these precision engineered two piece floating rear brake discs. Designed as a direct factory replacement, they deliver serious performance for fast road and track day use while retaining full compatibility with your OEM calipers and hardware. Expect stronger, more consistent braking, improved heat management and reduced unsprung mass compared to stock.
Each side specific disc features advanced directional internal vanes that move more air through the rotor for quicker heat evacuation. The result is stable pedal feel, even pad wear and dependable fade resistance when you push hard. Sold as a matched left and right pair for the rear axle in the original size of 370 mm diameter and 24 mm thickness.
Why enthusiasts choose this upgrade
- Direct fit replacement for the factory rear brake discs on BMW M3 and M4 F80 F82 F83
- Two piece floating design reduces weight for sharper response and better ride quality
- Directional cooling vanes maximise airflow for superior thermal control and fade resistance
- Consistent bite and balanced braking, ideal for spirited driving and track sessions
- Engineered for even pad contact to help maintain pad life and rotor surface quality
- Supplied as a handed pair for correct airflow and optimum cooling on each side
Fitment and sizing
Rear axle application for BMW M3 M4 on the F8X platform (F80 saloon, F82 coupe, F83 convertible). OEM size 370 x 24 mm. Bolts straight on with standard mounting hardware and original calipers. No modifications required.
What you receive
- 1 x left hand rear floating disc
- 1 x right hand rear floating disc
For a fully balanced setup, matching two piece front discs are available separately.
Proven by us and our customers
We run these on our own cars and the feedback from MJ Modifications customers has been outstanding. Expect confident braking, repeatable performance and a noticeable improvement in feel over standard equipment.
Installation
Professional fitting recommended. Book your install with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quotation and availability.
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