SKU: 83324018965

034Motorsport 2 Piece Floating Rear Brake Rotor Upgrade Kit - B9/B9.5 S4/S5/SQ5

$679.05 $754.50
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Description

034Motorsport 2 Piece Floating Rear Brake Rotor Upgrade Kit - B9/B9.5 S4/S5/SQ5The 034Motorsport 330mmx22mm 2 Piece Floating Rear Brake Rotor Upgrade Kit for the B9 & B9. 5 Audi S4 S5 SQ5 is a complete replacement brake rotor kit, designed to work flawlessly with the factory rear calipers found on the B9 & B9. 5 S4 S5 SQ5. Weighing in at approximately 12. 15lbs, each rotor reduces rotational weight by 4. 50lbs per corner over the factory 16. 65lb rotors! While reducing weight, the rotor retains proper thermal mass in the rings

The 034Motorsport 330mmx22mm 2-Piece Floating Rear Brake Rotor Upgrade Kit for the B9 & B9.5 Audi S4/S5/SQ5 is a complete replacement brake rotor kit, designed to work flawlessly with the factory rear calipers found on the B9 & B9.5 S4/S5/SQ5.

 

Weighing in at approximately 12.15lbs, each rotor reduces rotational weight by 4.50lbs per corner over the factory 16.65lb 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. From the factory, the same straight-veined rotor is used on both sides of the S4. The 034Motorsport rotors utilize 72 directionally curved vanes to forcefully flow cool air through the rotor to dissipate heat and are unique to the left and right axle to provide a substantial increase in cooling efficiency over the factory rotor design.

 

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 events while maintaining the axial and radial float between the hat and disc, allowing for safe expansion and contraction from heat.

 

FEATURES:

Lightweight Construction (12.15lb 034Motorsport Rotor vs 16.65lb OE Rotor)

Floating, 2-Piece Design

Aerospace Grade Aluminum Hats with Type III Hard Anodizing**

CM-250 Special Alloy Rotor Rings

J-slotted Friction Face

OEM Fitment & Functionality

72 Curved Vanes Force Cooling Air through Brake Disc

Directionally Curved Cooling Vanes vs OE Straight-Veined Rotors

Floating Bobbins Mounting System

Replaceable Rotor RingsLower Long-term Maintenance Cost

WHAT'S INCLUDED:

034Motorsport 2-Piece Floating Rear Rotor Pair

OE PART INTERCHANGE8W0 615 601 E

 

**Please Note: Type III hard anodizing of aluminum is considered as a functional surface coating process. While we always aim for color consistency, color variations may exist from batch to batch due to the nature and variables in the anodizing process.

 

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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: 83324018965

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4.5 ★★★★★
Based on 9 reviews
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Verified Purchase
Steve M.
Cuba, US
★★★★★ 5
Works well. You need to drill a 3/8” hole
Appears to be well made, alignment bar slides in nicely. As stated, you need to drill a hole in the bar for the gimble bearing driver, the directions are not clear, what I did was before I take out the old gimble bearing, put an O ring on the bar close to the last step on the bar, slide the bar all the way in, then carefully slide the bar out, this marks the distance from the back of the gimble bearing to where the shaft on the outdrive bottoms out, move the O ring a 1/4” towards the stepped part of the alignment tool (this is so you won’t bottom out the alignment tool when driving the gimble bearing in) then slide the driver puck up to the O ring and use a 3/8” diameter transfer punch through the side hole in the puck to mark the bar. You need to drill a 3/8” diameter hole in the alignment bar, two V blocks, some clamps, and a drill press will make drilling much easier, after the bar is securely mounted and centered in the drill press, use a center drill, then 1/4” drill first, using plenty of oil, drill all the way through, then use the 3/8” drill, deburr both sides and you should be good to go. People complain that it doesn’t come pre-drilled, the reason is that not all out drives are the same so you have to fit it to the outdrive that you have. Fortunately, I have a machine shop at my house and have a jig setup with various drill bushings, but the method I described above should work for you. Just make sure you’re perfectly centered and secure before you start drilling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
N
Verified Purchase
Nancy filippi
New York, US
★★★★★ 5
A must pull your gimbal bearing
You do need to drill a hole but worked perfect
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Reviewed in the United States on December 26, 2025
R
Verified Purchase
rich911s
Belleville, US
★★★★★ 5
Worked for Volvo Penta SX Gimbal Bearing
Very heavy tool, I was surprised. Pulled my bearing like it was nothing. Putting the new bearing in was a little more difficult as you have to drill a hole in the engine alignment shaft where it will work for your particular outdrive. Not hard, but it does not come pre-drilled as the required depth for each particular gimbal bearing differs by manufacturer and model. Measure your bearing placement before removal and check that it was installed correctly in the first place. The bearing should line up with the grease fitting and the o-rings on the drive shaft should end up riding in the middle of the bearing. once you have your measurement drill the hole, I used a drill press. I suppose you could use it on multiple outdrive models as long as you can drill more holes.
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Reviewed in the United States on June 5, 2023
G
Verified Purchase
Greg
Alexandria, US
★★★★★ 5
Great value
This kit worked perfectly on my Alpha one mercury outdrive. I saw a lot of people mention that it was a hassle to drill the hole when you better have all this alignment stuff. I threw it in use my regular drill drill guide and then the second hole was lined up. Pulling Gimble be very easy. I did have to adjust it up at an angle because my bearing was sitting in their crooked and it came out the second time I made the adjustment to the angle. I would highly recommend this.
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Reviewed in the United States on April 16, 2024
T
Verified Purchase
Tommy Knapp
Cuba, US
★★★★★ 1
Unfinished product - doesn't work - waste of money
in order to use this as an installation tool the directions tell you to drill a hole through the 2 inch steel rod..... either this hole should already be drilled, or this should not be advertised as an installation tool..... it will not install any bearings without extensive modification and requires the use of a drill press or a lathe. very dissatisfied that I now have to buy ANOTHER tool just to finish this job because this one doesn't do what it's described to do.... piece of junk... typical amazon garbage.... this is why I haven't used amazon in over a year... they rip you off with garbage.... I should have known better .... don't buy this junk .... Now they say 20 -30 days to get my refund .... Don't waste your time
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Reviewed in the United States on May 26, 2026

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