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Density Line Control Arm Kits, B9/B9.5 Audi A4/S4/RS4, A5/S5/RS5
From $936.00
To $1,124.00
In stock
SKU
034-401-1070/1/4
Camber Correcting BACKORDERED: Orders placed today will hold your spot in line for the next available units, Mid February 2025 ETA
NVH Levels: Low - Medium 
034Motorsport Density Line Lower Control Arm Kits are available with Density Line Adjustable & Non-Adjustable Upper Control Arms! Replace your vehicle's aging, worn control arms with these performance-engineered Density Line units with adjustable upper arms to restore feel and improve handling precision beyond factory levels.
Purchasing Instructions: Select the correct version based on the following:
- Density Line (Non-Adjustable): Direct replacement of the factory control arms, performance-engineered with Density Line bushings to restore handling precision beyond factory levels.
- Camber Correcting: Add positive camber after lowering to reach factory alignment specifications and reduce tire wear.
- Track Spec: Gain additional negative camber for increased cornering grip and improved handling performance.
NVH Levels: Low - Medium NVH is the measurement of how much noise, vibration, & harshness gets transmitted into the cabin of your vehicle. 034Motorsport Density Line Upper Control Arms transfer low to medium amounts of NVH to the cabin based on user feedback. NVH is subjective so some users may find NVH to be increased or decreased from our rating. If you are experiencing higher than quoted NVH with this product, please email techsupport@034motorsport.com for further assistance.
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PRODUCT DESCRIPTION:
034Motorsport's complete Density Line Control Arm Kit with Upper Adjustable or Non-Adjustable Control Arms and are designed to be performance replacements for all eight of the factory front upper and lower 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 the front-end feel!
Density Line Non-Adjustable Control Arms:
034Motorsport's complete Density Line Control Arms are designed to be a performance replacement for all factory front 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.
Density Line Adjustable Control Arms:
Featuring high-durometer rubber bushings, high-quality ball joints, machined-billet upper adjustable control arms, and Aurora or FK spherical bearings, this kit is engineered to limit unwanted deflection in the suspension.
034Motorsport's Density Line Adjustable Upper Control Arm Kit replaces the fixed factory front upper control arms to allow for precise, independent camber adjustments. Density Line Adjustable Upper Control Arms for the B9/B9.5 platform are available in two versions depending on your specific needs.
FEATURES:
Density Line Non-Adjustable:- Complete, Drop-In Replacement for Factory Upper & Lower Control Arms
- Offers Improved Handling Feel & Steering Precision
- High-Durometer Rubber Bushings (65-70 Durometer)
- Includes New Hardware
- Complete, Drop-In Replacement for Factory Control Arms
- Offers Improved Handling Feel and Steering Precision
- Camber Adjustability Tailored to How Your Car is Driven
- Aurora or FK Spherical Bearings Featuring Self-Lubricating Teflon Race Lining
- Add Positive Camber to Achieve Factory Alignment Specifications After Lowering and Reduce Tire Wear
- +1.0 to +2.0 Degrees of Adjustment vs. Factory Arms (No Modification Required)
- -0.2 to +2.0 Degrees of Adjustment vs. Factory Arms (With Minor Clearancing of Upright)
- Black Anodized Finish
- Complete, Drop-In Replacement for Factory Control Arms
- Offers Improved Handling Feel and Steering Precision
- Camber Adjustability Tailored to How Your Car is Driven
- Gain Negative Camber for Increased Cornering Grip, Better Turn-In, and Improved Handling
- -0.7 to +0.3 Degrees of Adjustment vs. Factory Arms (No Modification Required)
- -1.9 to +0.3 Degrees of Adjustment vs. Factory Arms (With Minor Clearancing of Upright)
- Clear Anodized Finish
- High-Durometer Rubber Bushings (65 Durometer)
- Aurora or FK Spherical Bearings Featuring Self-Lubricating Teflon Race Lining
What’s Included:
- Front Lower Control Arms - Front (Left & Right)
- Front Lower Control Arms - Rear (Left & Right)
- Density Line Upper Control Arms:
- CNC Machined Billet Upper Adjustable Control Arms - Front (Left & Right)
- CNC Machined Billet Upper Adjustable Control Arms - Rear (Left & Right)
- Rubber Spherical Bearing Dust Boots
Or - Front Upper Control Arms - Front (Left & Right)
- Front Upper Control Arms - Rear (Left & Right)
- Installation Hardware Kit
OE PART INTERCHANGE:
Upper Arms:- 8W0407505C
- 8W0407506C
- 8W0407509B
- 8W0407510B
- Control Arm Front Left: 8W0 407 151 A/B/C/D
- Control Arm Front Right: 8W0 407 152 A/B/C/D
- Control Arm Rear Left: 8W0 407 693 B
- Control Arm Rear Right: 8W0 407 694 B
- Ball Joint Front Right and Left: 8W0 407 689 B
| Make | Model | Years | Chassis | Engine |
|---|---|---|---|---|
| Audi | A4 | 2017+ | B9/B9.5 | 2.0 TFSI |
| Audi | A5 | 2018+ | B9/B9.5 | 2.0 TFSI |
| Audi | allroad | 2017+ | B9/B9.5 | 2.0 TFSI |
| Audi | RS5 | 2018+ | B9/B9.5 | 2.9 TFSI |
| Audi | S4 | 2018+ | B9 | 3.0 TFSI |
| Audi | S5 | 2018+ | B9/B9.5 | 3.0 TFSI |
 | The installation of your is a straightforward process that will take approximately 4 hours to complete. You can access our detailed installation guide by clicking the icon on the left.
|
| SKU | 034-401-1070/1/4 |
|---|---|
| Part Number Interchange | Upper Arms: 8W0407505C 8W0407506C 8W0407509B 8W0407510B Lower Arms: 8W0 407 151 A/B/C/D 8W0 407 152 A/B/C/D 8W0 407 693 B 8W0 407 694 B 8W0 407 689 B |
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Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm.
Learn More: www.p65warnings.ca.gov