SKU: 44970616395

034Motorsport 2-Piece Floating Front Brake Rotor Upgrade for BMW G20 M340i and Toyota A90/91 GR Supra

Sale price$749.25 Regular price$832.50
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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

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Description

034Motorsport 2-Piece Floating Front Brake Rotor Upgrade for BMW G20 M340i and Toyota A90/91 GR SupraThe 034Motorsport 348mmx36mm 2 Piece Floating Front Brake Rotor Upgrade for BMW G20 M340i and Toyota A90 91 GR Supra is a complete replacement brake rotor, designed to work flawlessly with the factory front calipers. Upgrading your front rotors will increase overall braking performance in street, track, and HDPE driving conditions, as they keep your brakes cool and strong all day long! Weighing in at approximately 25. 0lbs, each rotor reduces

The 034Motorsport 348mmx36mm 2-Piece Floating Front Brake Rotor Upgrade for BMW G20 M340i and Toyota A90/91 GR Supra is a complete replacement brake rotor, designed to work flawlessly with the factory front calipers. Upgrading your front rotors will increase overall braking performance in street, track, and HDPE driving conditions, as they keep your brakes cool and strong all day long!

Weighing in at approximately 25.0lbs, each rotor reduces rotational weight by 3.1lbs on each corner over the factory 28.10lb rotors! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture, and dissipate heat.

The central hat portion of the 034Motorsport rotor is made of 6061-T6 aircraft specification aluminum. The disc is constructed out of a proprietary metal alloy that can withstand immense braking temperatures while holding form. The rotor utilizes 48 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

The face of the rotor utilizes J-Slot slots to clean the pad and surface of contaminants and allows hot pad outgassing, all while reducing overall braking noise compared to a traditional slotted rotor.

The rotor and hat have a floating mount system that utilizes high strength alloy steel bobbins. The pins take the load from braking actions while maintaining the axial and radial float between the hat and disc, allowing for safe expansion and contraction from heat.

Features:

  • Lightweight Construction (25.0lb 034Motorsport Rotor vs. 28.0lb OE BMW Rotor)
  • Floating, 2-Piece Design
  • Aerospace Grade Aluminum Hats
  • CM-250 Special Alloy Rotor Rings
  • J-slotted Friction Face
  • OEM Fitment & Functionality
  • 48 Curved Vanes Force Cooling Air through Brake Disc
  • Floating Bobbins Mounting System
  • Replaceable Rotor Rings
  • Lower Long-term Maintenance Cost

OE Part Interchange:

  • 34 10 8 858 705 (Left)
  • 34 10 8 858 706 (Right)

What's Included:

  • 348x36 Left Rotor
  • 348x36 Right Rotor
  • Installation and Break-in Instruction Sheet
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44970616395

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4.6 ★★★★★
Based on 14 reviews
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L
Verified Purchase
Lory Johnson
Houston, US
★★★★★ 4
Recommend it for all.
Color: Grey, Color: Grey
Very nice chair. One warning…it went together very easily except for the last screw!!! I finally gave up. A neighbor came over and gave up. My daughter came. Over and after much groaning and moaning got that last screw in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
D
Verified Purchase
Daniel Ivan
Waukegan, US
★★★★★ 5
Great for home office
Color: Grey, Color: Grey
This was a great replacement to the chair I use when I work from home, padding is firm and comfortable so I have no issue sitting on it for hours, the arm rest are foldable so is very convenient when my dogs are in co worker duty. Very easy to put together and it feels very firm and stable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
C
Verified Purchase
Carol Ann Everitt
Charlottesville, US
★★★★★ 5
Thick seat cushion
Color: Grey
This double-layer seat cushion is so comfortable! Before, my lower back would ache after just an hour on a hard bench, but now I can work in this chair for most of the day without feeling tired. The PU leather has a great texture, looks high-end, and is incredibly easy to maintain—just wipe it down with a cloth when it gets dirty. It feels smooth and breathable. The 360-degree swivel is very smooth, making it convenient to reach for documents in the office. The casters roll quietly and won’t scratch the floor. For anyone who spends a lot of time working at a desk, the comfort level at this price point is absolutely worth it. I highly recommend it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
B
Verified Purchase
Brittany
Whiting, US
★★★★★ 3
Meh
Color: Black
It's ok. I got it because it looked like it has more cushion and might be more comfortable. Nope. It's the same comfort level as different chairs. My reer still goes numb and gets uncomfortable in this chair. Also, where your arms sit, the chair arms are slightly curved upwards and it causes my chair to be unable to fit under my desk. If they weren't slightly curved, that wouldn't happen. It's just another chair, nothing spectacular.
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Reviewed in the United States on June 13, 2026
M
Verified Purchase
Melissa Alvarado
Port Orchard, US
★★★★★ 5
Solid quality and comfortable
Color: Light Grey, Color: Light Grey
Wonderful quality chair, solid and sturdy, it was easy to put together, the directions were very clear and all the pieces fit together perfectly without issue. It is made of breathable material and I love that the arms flip up easily. You can raise it up or down and it has an adjustable headrest. It also has adjustable lumber support. It rolls easily and the color is the only reason I might return, I think I want a different one instead. The chair is comfortable for a petite person but equally comfortable for a tall person. We have both in our family and it is great for both. The armrests are comfortable and there is really nothing negative to say about this chair at all. Considering the quality, it is a great value for the money.
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Reviewed in the United States on April 15, 2026

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