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034 Motorsport 2-Piece 370x24mm Floating Rear Brake Rotor Upgrade BMW M2 | M3 | M4 2012-2019
$1017.90

Upgrade Your BMW's Braking with 034Motorsport’s 2-Piece Floating Rear Brake Rotors

If you're looking to seriously enhance your BMW F8x M2, M3, or M4's braking performance, you’ve got to check out the 034Motorsport 370mm x 24mm 2-Piece Floating Rear Brake Rotor Upgrade Kit. This isn't just some generic upgrade—it's designed to fit perfectly with your factory rear calipers, so you won’t have to worry about compatibility issues.

Weighing in at about 20.6 lbs, these rotors are as light as the OEM ones but pack a punch when it comes to cooling. The rotors feature 36 directionally curved vanes that really push cool air through, helping to keep things from overheating during those spirited drives or track days. Trust me, you want that heat dissipation when you’re pushing your car hard.

The central hat is made from 6061-T6 aircraft-grade aluminum, which means it’s tough yet lightweight. The rotor rings are crafted from a special alloy that can handle the high temps you might encounter on the street or the track. No more worrying about your rotors warping or losing form when you really need them to perform.

One cool feature is the J-Slot design on the rotor face. Unlike traditional drilled rotors that can crack under pressure, these slots help clean the brake pad surface and allow for better outgassing of hot pads. Plus, they reduce noise, so you can enjoy your drive without that annoying squeal.

Now, let’s talk about the floating mount system. It uses high-strength alloy steel bobbins to allow for both radial and lateral expansion, which is essential for handling the heat generated during braking. This means your rotors can expand and contract safely without affecting performance.

Features:

  • Lightweight at 20.6 lbs—same as OEM but with improved cooling and metallurgy.
  • Floating bobbins allow for radial and lateral expansion—OEM only allows for radial.
  • Made with aerospace-grade aluminum hats.
  • CM-250 special alloy rotor rings designed for hard street and track use.
  • J-slotted friction face to prevent cracking compared to OEM drilled rotors.
  • OEM fitment and functionality—no surprises here.
  • 36 curved vanes for effective cooling.
  • Replaceable rotor rings mean you save money in the long run.
  • Lower long-term maintenance costs.

What’s in the Box?

  • 370x24 Left Rotor
  • 370x24 Right Rotor
  • Installation and break-in instruction sheets

OE Part Interchange:

  • 34 11 2 284 809 (Left)
  • 34 11 2 284 810 (Right)

Fitment:

  • BMW M2 LCI F87 (2016-2019)
  • BMW M3 F80 (2012-2015)
  • BMW M3 LCI F80 (2015-2018)
  • BMW M4 F82 (2013-2017)
  • BMW M4 LCI F82 (2016-2019)
  • BMW M4 F83 (2013-2017)
  • BMW M4 LCI F83 (2016-2019)

Note: Installing these rotors is pretty straightforward, but you’ll want to set aside about 2-3 hours to get everything done right. It’s worth it when you feel the difference on the road or the track.

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Vehicle
2016-2018
BMW M2
2012-2018
BMW M3
2013-2019
BMW M4

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Who is 034 Motorsport?

034 Motorsport was founded in 2005 for enthusiasts by enthusiasts with a passion for bringing motorsport-quality performance upgrades and tuning to Audi and Volkswagen vehicles. Since its inception, the company has grown to meet the expanding needs of petrolheads with innovation, quality, and performance in mind. 034 Motorsport is dedicated to providing customers with only the finest performance products, tuning, and service for their Audi or Volkswagen.

Dedicated to the Car Scene

034Motorsport is owned and operated by car enthusiasts just like you! This means that you can count on them for expert advice and products that deliver each and every time. When they aren’t at work, you can find the 034 Motorsport folks at local car meets, Audi Club Track Days, or simply at home working on their own rides.   

Being gearheads themselves, the 034 Motorsport staff understands the importance of a strong automotive community and giving back to the customers they owe their success to. 034Motorsport is a proud sponsor of Audi Club North America's Golden Gate Chapter, in addition to several other popular automotive forums, including Audizine, Fourtitude, VWvortex, and QuattroWorld. The brand also supports NorCal Audi Club, and frequently hosts events for its members.

Involvement in Competition Racing

034Motorsport stays true to its roots (and name) by actively participating in motorsport events, like time attacks, endurance racing, and hill climbs. These events allow the company to simultaneously showcase its products and racing expertise, while putting them to the ultimate test. A number of 034 Motorsport’s most iconic projects, including the Time Attack A4, GTI-RS, and 80tq raised the bar for on-track performance, while also accelerating production and testing processes. 

Extensive Quality Product Lineup

034 Motorsport is well-known for producing some of the finest race-proven performance upgrades for Audi and Volkswagen enthusiasts. The 034 Motorsport performance facility is located in Fremont, California and home to its engineering, manufacturing, and tuning departments. The company prides itself on in-house manufacturing, where it designs, fabricates, calibrates, and tests all products under one roof with complete control. 034 Motorsport carries a wide range of products that includes suspension parts, motor mounts, intakes, silicone hoses, and numerous underhood goodies.

Find 034 Motorsport at Vivid Racing

You can find an extensive lineup of quality 034 Motorsport parts right here at Vivid Racing. We carry everything from 034 Motorsport blow-off valves, cold air intakes, intercoolers, differentials, and ventilation systems to wheel spacers, springs, turbos, mid-pipes, and steering components. Whatever you may possibly need, chances are we carry it! If you cannot find a particular item above or have any questions, please call our sales team at (480) 966-3040.

It is the intention of 034Motorsport to sell only quality products. We offer a 1-year warranty against defects in workmanship or materials, not extending to normal tear and wear or mis-use. You must provide us with a proof of purchase, defect or the result of wear or mis-use. Some products have less than 1-year warranty. Please inquire before ordering.

034Motorsport will only replace or repair warranty items. No refunds will be given. 034Motorsport or the product manufacturer will inspect or test all products prior to a warranty claim adjustment. This process may take up to 6 weeks. You must obtain an RMA number from either Customer Service or Technical Support prior to any return. All products we offer are warranted to be free from defects prior to installation. Any modification or improper use voids this warranty. This warranty does not cover installation. 034Motorsport shall be the final arbitrator in interpreting the extent and remedy of warranty.

034Motorsport warranties are not transferrable, and available to the original purchaser only, however if you do buy a 034Motorsport part second hand and have a problem with it, do contact us as we can typically arrive at a reasonable, fair solution.

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