



MMX Performance - BRAKE DISCS/ROTORS 2 PEICE FLOATING - REAR BMW G8X 380mm
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Description
MMR Performance disc/rotor upgrades 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.
Our 370mm x 24mm 2-piece floating rear discs are the perfect addition to match our MMR front replacement discs. Matching grooves, matching performance.

Utilising a two-piece 370mm floating design allows our 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, MMR discs last considerably longer than factory discs. The friction surface features our trademark groves that increase bite and remove debris from the pad surface giving the perfect balance between brake feel and longevity.
Our centre hat is crafted from 6061-T6 aircraft specification aluminium. Our grooved discs are constructed from proprietary metal alloys, that can withstand immense braking temperatures while holding form. Our discs also utilise 72 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.
Internal vanes are used to draw air through the centre of the disc outward, allowing the heat to transfer as it passes. The rotation of the discs and vanes play an important role in brake cooling as it acts as a pump to move air and unlike the OEM brake discs, our disc upgrade consists of a right and left-hand disc to optimise cooling and ensure consistent stopping power for your vehicle.
As the MMR discs dissipate heat much more efficiently the factory pad compound works much better in real-world conditions, only when you’re using the vehicle on the track would we recommend considering a different pad altogether. But rest assured, you can use OEM or after-market performance pads with our discs.
More information
Get Booked in for fitting here
Warranty, Shipping and Returns
Warranty: Products are supplied with the applicable manufacturer warranty.
Shipping: We offer UK and worldwide shipping. Delivery estimates are shown above.
Returns: Eligible unused items can be returned within 14 days in accordance with our returns policy.
Finance Options
Klarna payment options are available at checkout where eligible.
Why buy from us?
Why buy from us?
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Specifications
- Brand
- MMX Performance (Formally MMR)
- Product type
- Brake Discs
- SKU:
- MMR30-1602R
- Vehicle make
- BMW
- Vehicle model
- M2, M3, M3 Touring, and M4
- Vehicle variant
- G80, G81, G82, G83, and G87

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Need help?
MMX Performance FAQs
Helpful answers before you order. Need more detail? Our team can help.
How do I confirm this part fits my vehicle?
Check the model, year, engine, chassis and any exclusions in the product description. Select the required option before adding to your basket. The vehicle selector helps narrow your search; contact us if your car has different factory options or existing modifications.
Can I order this for a modified car?
Existing modifications can change compatibility. Tell us which related parts are already fitted and how you use the car so we can help you check the right specification before ordering.
When will my order arrive?
Select your required option and check the live availability message above. Dispatch is when your order leaves us; delivery takes additional time and depends on the service and destination. If no verified lead time is shown, or you need the item for a fitting appointment or event, contact Nineteen72 Performance before ordering.
What is included in the price?
Check the product description, selected option and stated quantity before ordering. Images may show optional equipment or an example installation. If you need a matching pair, a complete kit or additional hardware, ask us to confirm exactly what is included.
How do I get help before ordering?
Contact Nineteen72 Performance with a link to this product and your question. For vehicle-specific parts, include your model, year, engine and any modifications that may affect compatibility.
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