MMX BMW G8X 2-Piece 370mm Floating Rear Brake Discs/Rotors (G80/G81 M3, G82/G83 M4 & G87 M2)

MMX Performance BMW G8X rear brake discs are designed to directly replace your OEM brake discs and come complete with left and right-handed, two-piece floating discs. Each disc features much larger, more efficient directional cooling vanes to ensure even braking performance, pad wear and cooling capability.

Designed specifically for the BMW G80 M3, G82 M4 and G87 M2, the MMX 370mm x 24mm 2-piece floating rear discs are the perfect addition to match our MMR front replacement discs. Matching grooves, matching performance.

Superior Brake Disc Design

Utilising a two-piece 370mm floating design allows the MMX disc and hat to expand radially and axially as they absorb heat generated from use, avoiding the most common cause of warping and cracking seen in single-piece discs. Due to the efficiency of this design, MMX discs last considerably longer than factory discs. The friction surface features MMX's trademark groves that increase bite and remove debris from the pad surface giving the perfect balance between brake feel and longevity.

Brake Discs Specifications

• 370mm x 24mm
• Floating design
• Features internal vanes
• Centre hat crafted from 6061-T6 aluminium
• Less prone to warping & cracking
  
• Superior heat dissipation

Compatible Vehicles

• BMW G80 M3 Saloon (2021+)
• BMW G80 M3 Competition Saloon (2021+)
• BMW G81 M3 Touring (2023+)
• BMW G81 M3 Competition Touring (2023+)
• BMW G82 M4 Coupe (2021+)
• BMW G82 M4 Competition Coupe (2021+)
• BMW G83 M4 Convertible (2021+)
• BMW G83 M4 Competition Convertible (2021+)
• BMW G87 M2 Coupe (2023+)

*Please note: These discs are NOT suitable for vehicles specified with the M Carbon Ceramic Package.

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.