SKU: 97074344438

034Motorsport 2-Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 A4/S4/A5/S5/Q5/SQ5 - GREY

Sale price$1102.49 Regular price$1224.99
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Description

034Motorsport 2-Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 A4/S4/A5/S5/Q5/SQ5 - GREY034 Motorsport 2 Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 A4 S4 A5 S5 Q5 SQ5 GREY. The 034Motorsport 370x22mm 2 Piece Floating Rear Brake Rotor Upgrade for B9 B9. 5 Audi A4 S4, A5 S5, Q5 SQ5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Weighing in at approximately 15. 1lbs, each rotor reduces rotational weight by 1. 6lbs on each corner over the factory 16. 7lbs

034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade Audi B9 A4/S4/A5/S5/Q5/SQ5 - GREY.

The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5  is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Weighing in at approximately 15.1lbs, each rotor reduces rotational weight by 1.6lbs on each corner over the factory 16.7lbs rotors, and increases rotor diameter from 330mm to 370mm! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade is available in Black, Red, and Grey for the A4/S4, A5/S5, & Q5/SQ5.

The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory rear calipers. Upgrading your 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 15.1lbs, each rotor reduces rotational weight by 1.6lbs on each corner over the factory 16.7lbs rotors, and increases rotor diameter from 330mm to 370mm! While reducing weight, the rotor retains proper thermal mass in the rings to adequately capture heat, while utilizing 36 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat.

Upsizing the rear rotor size from 330mm to 370mm repositions the caliper further outward, increasing its leverage on the rotor. With this added leverage, the factory rear caliper can generate more braking force at the rear axle. This not only improves rear-end braking performance, but also helps take stress off the front brakes during hard stops. The result is a more balanced braking system with better stability, reduced front brake overload, and enhanced overall stopping confidence.

The central hat portion of the 034Motorsport rotor is made of 6061-T6 aircraft specification aluminium. The disc is constructed out of a proprietary metal alloy that can withstand immense braking temperatures while holding form. The rotor utilizes 36 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 surface of contaminants and allows hot pad outgassing.

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.

Fitment:

Make Model Years Chassis Engine
Audi A4 2017-Present B9/B9.5 2.0 TFSI
Audi A5 2017-Present B9/B9.5 2.0 TFSI
Audi Allroad 2017-Present B9/B9.5 2.0 TFSI
Audi Q5 2017-Present B9/B9.5 2.0 TFSI
Audi S4 2017-Present B9/B9.5 3.0 TFSI
Audi S5 2017-Present B9/B9.5 3.0 TFSI
Audi SQ5 2017-Present B9/B9.5 3.0 TFSI


Features:

  • Lightweight Construction (15.1lb 370mm 034Motorsport Rotor vs. 16.7lb 330mm OE Rotor)
  • Floating, 2-Piece Design
  • Aerospace Grade Aluminium Hats with Type III Hard Anodizing**
  • CM-250 Special Alloy Rotor Rings
  • J-Slot Slotted Friction Face
  • OEM Fitment & Functionality
  • 36 Curved Vanes Force Cooling Air through Brake Disc
  • Floating Bobbins Mounting System
  • Replaceable Rotor Rings
  • Lower Long-term Maintenance Cost

Part Number Interchange for A/S Models:

  • 8W0 615 601 E
  • 8W0 615 601 K

Part Number Interchange for RS4/RS5:

  • 8W0 615 601 G

What's Included:

  • 034Motorsport 2-Piece Floating Rear Rotor Pair
  • Caliper Carrier Conversion Brackets
**Please Note: Type III hard anodizing of aluminium is considered as a functional surface coating process. While we always aim for colour consistency, colour variations may exist from batch to batch due to the nature and variables in the anodizing process.

The installation of your 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5, & RS4/RS5 is a straight forward process that will take approximately 1.5 to 2 hours to complete. You can access our detailed installation guide by clicking the link below.

Download the 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5, & RS4/RS5 Install Guide

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: 97074344438

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4.4 ★★★★★
Based on 6 reviews
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Verified Purchase
Wade Muntz
Charlottesville, US
★★★★★ 5
I would definitely buy this again
Style: Heavy Duty
Perfect silverware set. The look, the simplicity. It’s everything I wanted.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
C
Verified Purchase
Carmen Dolores Ramos
San Leandro, US
★★★★★ 5
Ivory Modern Essentials Dinnerware Set
These white ceramic dinnerware pieces have a clean, modern, and minimalist design that works well for both everyday meals and casual entertaining. The glossy finish gives them an elegant look, while the neutral white color easily matches different table settings and kitchen styles. The mugs appear sturdy with comfortable handles, and the plates have a simple yet timeless shape that feels versatile for a variety of dishes. One of the standout features is their practicality. The smooth ceramic surface looks easy to clean, and the stackable plate design helps save storage space. The set also feels durable enough for daily use while still looking refined enough for guests. Overall, this dinnerware set offers a great balance of style, simplicity, and functionality. It’s an excellent option for anyone looking for affordable, classic tableware that can fit seamlessly into almost any home décor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
I
Verified Purchase
Ian Simon
Bozeman, US
★★★★★ 5
Exceptional quality!
I have had these dishes for two years and highly recommend them. For the price, it is unbeatable. These have the benefits of significantly higher priced dishes. They are a solid weight, which is an important factor in preventing them from being too hot to touch after microwaving. When filled with freshly brewed coffee, the mugs can be on the verge of being too hot to touch, but there is no issue if holding from the handles. I have a fireclay sink that could cause issues with weaker dishes. The handles on the coffee mugs have proven durable over time. I have never experienced a crack in the mugs, even where the handles meet the mugs. I have dropped dishes over time. These do not splinter or shatter into tiny pieces like comparably priced dishes. These crack into large pieces. I have endured chips and cracks in a bowl and plate. Neither broke apart further, despite hot or cold temperatures from microwave, dishwasher, or ice cream. I have not experienced any staining over time. The dishes clean very well in the dishwasher. The minimalist style, weight, and functionality of these dishes compare to sets that cost significantly more money at luxury brand stores.
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Reviewed in the United States on July 9, 2024
R
Verified Purchase
ronnie white
Cuba, US
★★★★★ 5
Good design and size.
I was surprised at the quality. of this dish set. The cups were well balanced and delightful to use. The bowls are of good shape and just the right size for a bowl of cereal or soup.
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Reviewed in the United States on April 22, 2026
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Verified Purchase
David White
Whiting, US
★★★★★ 4
Minimalist, imperfect but certainly reasonably good for the price
This is a set of 16 pieces, all of which are usable and practically sized, including the coffee/tea/beverage cups. While this is absolutely not high quality it is more than expected for $30 or so. The dishes are on the heavier side, not very lightweight brittle. I doubt they are break resistant. While they appear bone white, which they are, I'm not sure they are pure white (almost.) Some dishes will feature some small imperfections, like a small dot here and there, nothing too terrible. Stacking them is where you'll notice that the large plates are absolutely not perfect and you'll see that the ends are not perfect by rotating the plates and you'll notice areas they go slightly up and down. Again, nothing really noticeable or terrible unless you stack them. If you've got a dorm room, don't care too much about having anything more than a minimalist set of reasonable quality dishes that you won't get embarrassed about for serving casual meals, this makes for a decent set. Hopefully they are safe (supposedly Amazon says they are) and they are made in China. If you're wondering about branding, on the bottom of each item there is a conspicuous amazon basics logo.
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Reviewed in the United States on May 24, 2018

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