034Motorsport Density Line Upper Control Arm Kit - Audi B9/B9.5 A4/S4/A5/S5/RS5 - 034-401-1072
SKU: 70264991666

034Motorsport Density Line Upper Control Arm Kit - Audi B9/B9.5 A4/S4/A5/S5/RS5 - 034-401-1072

Sale price$310.50 Regular price$345.00
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Description

034Motorsport Density Line Upper Control Arm Kit - Audi B9/B9.5 A4/S4/A5/S5/RS5 - 034-401-1072034 Motorsport Density Line Upper Control Arm Kit Audi B9 B9. 5 A4 S4 A5 S5 RS5 034 401 1072. Replace your vehicle's aging, worn control arms with these performance engineered Density Line Upper Arms restore feel and improve handling precision beyond factory levels. Density Line (Non Adjustable): Direct replacement of the factory control arms, performance engineered with Density Line bushings to restore handling precision beyond factory levels.

034 Motorsport - Density Line Upper Control Arm Kit - Audi B9/B9.5 A4/S4/A5/S5/RS5 - 034-401-1072.

Replace your vehicle's aging, worn control arms with these performance-engineered Density Line Upper Arms restore feel and improve handling precision beyond factory levels. 

  • Density Line (Non-Adjustable): Direct replacement of the factory control arms, performance-engineered with Density Line bushings to restore handling precision beyond factory levels.

034Motorsport's Density Line Upper Control Arm Kits are available as Adjustable or Non-Adjustable Control Arms, and are designed to be performance replacements for all four of the factory front upper control arms. The result is tighter handling and more precise steering response than even brand new factory control arms can offer. In addition, adjustable upper control arms allow optimal alignment for your lowered or track driven vehicle.

The factory front control arms are an integral part of the suspension, but can start wearing out as early as 40,000 miles - especially on enthusiast-owned vehicles which are driven hard on the street or track. As the rubber bushings degrade and ball joints develop play, alignment is compromised and steering becomes less precise. This kit is a drop-in replacement with feature improvements over stock, that will tighten up front-end feel and allow camber adjustment to significantly improve handling.

DENSITY LINE NON-ADJUSTABLE CONTROL ARMS:

034Motorsport's complete Density Line Upper Control Arms are designed to be a performance replacement for all four factory front upper control arms. Featuring high-durometer rubber bushings and high-quality ball joints, Density Line Control Arms are engineered to limit unwanted deflection in the suspension, resulting in tighter handling and more precise steering response than even brand-new factory control arms can offer.

BENEFITS:

  • Complete, Drop-In Replacement for Factory Control Arms
  • Reduce Deflection to Maintain Suspension Geometry Under Load
  • Improve Handling Feel & Steering Precision

FEATURES:

  • CNC-Machined Billet Aluminum Arms for Strength
  • High-Durometer Rubber Bushings (65 Durometer)
  • Genuine Aurora Spherical Rod Ends Featuring Self-Lubricating Teflon Race Lining
  • Anodized Finish for Durability
  • Rebuildable Design

WHAT'S INCLUDED:

  • Adjustable Front Upper Control Arms - Front (Left & Right)
  • Adjustable Front Upper Control Arms - Rear (Left & Right)
  • Rubber Dust Boots (Set of 4)

DENSITY LINE NON-ADJUSTABLE:

  • Complete, Drop-In Replacement for Factory Upper Control Arms
  • Offers Improved Handling Feel & Steering Precision
  • High-Durometer Rubber Bushings (70 Durometer)
  • Includes New Hardware
  • Includes:
    • Front Upper Control Arms - Front (Left & Right)
    • Front Upper Control Arms - Rear (Left & Right)
    • Installation Hardware

OE PART INTERCHANGE:

Upper Arms:

  • 8W0407505C
  • 8W0407506C
  • 8W0407509B
  • 8W0407510B

INSTALLATION & WARRANTY:

Installation:

  • It is imperative that the suspension be compressed to static ride height before any suspension pivot bushings are tightened, as per the factory installation procedure. If this is not done, the bushings will tear prematurely as the twisting forces on them will be much higher than is intended. 034Motorsport's Limited Warranty on Density Line products does not cover premature failure due to improper installation or use.
  • We highly recommend professional installation for this product.

Warranty:

  • 1 Year Limited Replacement Warranty (If you encounter any issues with our products outside of the warranty period, we will work with you to provide a resolution.)

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 RS5 2018-Present B9/B9.5 2.9 TFSI
Audi S4 2018-Present B9 3.0 TFSI
Audi S5 2018-Present B9/B9.5 3.0 TFSI

 
INSTALLATION:

The assembly of your Density Line Adjustable Upper Control Arm Kit, B9 Audi A4/S4, A5/S5/RS5, Allroad is a relatively simple process. You can access our detailed assembly guide by clicking the link below.

Download Density Line Adjustable Upper Control Arm Kit, B9 Audi A4/S4, A5/S5/RS5, Allroad Assembly 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: 70264991666

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Ann
Pawtucket, US
★★★★★ 5
Effective
Size: L (up to size 11)-Pink
Fantastic. I put lotion on my feet & wear them when I go to sleep. I often wake up during the night and will remove them to find my feet soft and smooth. They are strong and fit my size 10 womens’ size.
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Reviewed in the United States on March 27, 2026
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Stacy
New York, US
★★★★★ 1
The shoe size should be smaller 9 is the max and it is still to tight
Size: M (up to size 9)-Beige, Size: M (up to size 9)-Beige
Very tight had to take off my feet in the middle of the night they were cutting off my circulation.
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Reviewed in the United States on February 17, 2026
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michele p.
Dallas, US
★★★★★ 5
Great product to keep moisture in
Size: M (up to size 9)-Beige
These are so cool. I was skeptical at first. After an at home pedicure I put lotion on and keep these on for about a few hours. The moisture retention, and comfort and fit or absolutely amazing!
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Reviewed in the United States on April 24, 2025
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Amy
Houston, US
★★★★★ 5
These work!
Size: M (up to size 9)-Beige
I’ve had dry cracked feet my whole life. Tried these last night with lotion from Trader Joe’s and literally overnight my feet are the softest they’ve ever been. I put a pair of socks over them and went to sleep with them on. Hard to walk around with all that slippery-ness but worth it! 10/10✨👌
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Reviewed in the United States on June 11, 2025
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Natalie
Houston, US
★★★★★ 5
Quality
Loved
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Reviewed in the United States on May 12, 2026

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