Density Line Control Arm Kits, B9/B9.5 Audi A4/S4/RS4, A5/S5/RS5

Check out our new Non-Adjustable Control Arm Kits here!

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

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

Lower Arms:

  • 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

Density Line Lower Control Arm Kit, B9/B9.5 Audi A4/S4/RS4, A5/S5/RS5

Check out our new Lower Control Arm Kit here!

The factory front lower control arms are an integral part of the B9/B9.5 Audi A4/S4/RS4 and A5/S5/RS5 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.

034Motorsport's complete Density Line Lowers Control Arms are designed to be a performance replacement for all four of the factory front lower control arms. Featuring high-durometer rubber bushings and high-quality ball joints, Density Line Lower 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.

FEATURES:

  • Complete, Drop-In Replacement for Factory Lower Control Arms
  • Offers Improved Handling Feel & Steering Precision
  • High-Durometer Rubber Bushings (65 Durometer)
  • Solid Rubber Bushings Eliminate OE Arm Bushings Fluid Leaks
  • Includes New Ball Joints

WHAT’S INCLUDED:

  • Front Lower Control Arms - Front (Left & Right)
  • Front Lower Control Arms - Rear (Left & Right)
  • Ball Joints (Pair)
  • Lower Control Arm Installation Hardware Kit

FITMENT:

  • 2017 - Present Audi A4 (B9/B9.5)
  • 2018 - Present Audi S4 (B9/B9.5)
  • 2018 - Present Audi RS4 (B9/B9.5)
  • 2018 - Present Audi A5 (B9/B9.5)
  • 2018 - Present Audi S5 (B9/B9.5)
  • 2018 - Present Audi RS5 (B9/B9.5)
  • 2017 - Present Audi Allroad (B9/B9.5)

OE PART INTERCHANGE:

  • 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

Density Line Upper Control Arm Kits, B9/B9.5 Audi A4/S4, A5/S5/RS5, Allroad

Check out our Upper Control Arm Kits here!

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.

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.

BENEFITS:

  • Complete, Drop-In Replacement for Factory Control Arms
  • Precisely Adjust Camber Independently at Each Front Wheel
  • 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