{ $refs.inquiryTab.scrollIntoView({ behavior: 'smooth', block: 'start', inline: 'nearest' }); }, 300);">

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

MMX Rear 2-Piece Floating Brake Rotors for G8x BMW M2 / M3 / M4

MMX Performance’s Rear 2-Piece Floating Brake Rotors for the G8x BMW M2, M3, and M4 are engineered as direct replacements for the OEM rear discs, delivering improved thermal performance, durability, and braking consistency. Featuring a 370mm x 24mm two-piece floating design, each rotor is side-specific to optimize cooling efficiency and maintain consistent brake performance under demanding conditions. The floating construction allows for radial and axial expansion under heat, significantly reducing the risk of warping or cracking seen with single-piece designs. MMX’s proprietary high-temp alloy friction rings are paired with CNC-machined 6061-T6 aerospace-grade aluminum center hats for reduced unsprung mass and long-term reliability. The grooved surface enhances pad bite and clears debris, while 72 directionally curved internal vanes act as a high-efficiency pump to draw cool air through the disc and expel heat. This advanced design improves real-world braking performance and extends the effectiveness of factory pad compounds, though both OEM and aftermarket pads are fully compatible. Designed to pair perfectly with MMX front rotors, these rear discs deliver a matched aesthetic and performance upgrade across all four corners.

Features

370mm x 24mm floating 2-piece rotors
Aerospace grade 6061-T6 aluminum hats
Specific left and right handed directional discs
72 correctly oriented curved internal cooling vanes
Floating bobbins mounting system
Increases cooling efficiency up to 30% compared to OE discs / rotors
Flexible fitment for OEM or after-market pads
Fitment for OEM calipers
Matching front discs available

Applications

BMW M2: G87 (2023-present)
BMW M3: G80, G81 (2021-present)
BMW M4: G82, G83 (2021-present)

Notes

Matching front discs available
You can use OEM or after-market performance pads with these discs
Sold as a pair (2 rear brake rotors)
Images are generic, actual product may vary

About MMX Performance

MMX Performance is a UK‑based specialist in performance parts for BMW and MINI vehicles, crafting high‑quality upgrades that blend precision engineering, rigorous testing, and motorsport heritage. Driven by enthusiast culture, MMX designs its products in the UK — often putting them through track validation — to ensure durability, fitment accuracy, and on-road performance. Their catalog spans drivetrain components, spacers, hardware, and chassis enhancements, all tailored to elevate both the driving experience and visual appeal of BMW and MINI models.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

MMX Rear 2-Piece Floating Brake Rotors for G8x BMW M2 / M3 / M4 [MMR30-1602-R]

Guaranteed Safe Checkout

MMX Rear 2-Piece Floating Brake Rotors for G8x BMW M2 / M3 / M4

Features

Applications

Notes

About MMX Performance

Reviews