SKU: 21824644509

034Motorsport Density Line Control Arm Kit - Audi/Bentley/Porsche / 4M / RSQ8 / Bentayga / E3 Cayenne & More

Sale price$497.02 Regular price$552.24
Save 10%

Pay in installments of $138.06 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 26 - Jul 31

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

034Motorsport Density Line Control Arm Kit - Audi/Bentley/Porsche / 4M / RSQ8 / Bentayga / E3 Cayenne & MoreLuxury performance SUVs like the RSQ8, Bentayga, Cayenne, and Urus are celebrated for their commanding presence and impressive power, but their handling performance often comes at the cost of suspension comfort and precision. The factory front control arms are designed to prioritize a smooth, compliant ride, but as they wear out, often as early as 40,000 miles, steering responsiveness and stability can decline, especially under spirited driving

Luxury performance SUVs like the RSQ8, Bentayga, Cayenne, and Urus are celebrated for their commanding presence and impressive power, but their handling performance often comes at the cost of suspension comfort and precision. The factory front control arms are designed to prioritize a smooth, compliant ride, but as they wear out, often as early as 40,000 miles, steering responsiveness and stability can decline, especially under spirited driving conditions.

Engineered as a direct replacement for the factory front control arms, Density Line Control Arms feature high-durometer rubber bushings along with premium ball joints to significantly reduce unwanted suspension deflection. This translates to a level of precision and handling performance that is truly befitting of the world’s finest luxury SUVs. The result is a front suspension that feels as smooth and refined as the factory setup, but with significantly enhanced durability and control, giving you the confidence to push your SUV to its limits on the street, backroads, or track.

The factory front control arms are an integral part of the suspension, especially on enthusiast-owned vehicles which are driven hard on the street, backroads, or the 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. With 034Motorsport’s Density Line Control Arms installed, you can enjoy the perfect synergy of luxury, performance, and reliability.

034Motorsport's complete Density Line Control Arm Kit with Non-Adjustable Control Arms 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 performance driven vehicle.

Features:

Density Line Non-Adjustable:

  • Complete, Drop-In Replacement for Factory Upper Control Arms
  • Offers Improved Handling Feel & Steering Precision
  • High-Durometer Rubber Bushings (65 - 70 Durometer)
  • No Fluid, So Unlike OE Arms, the Bushings Cannot Leak
  • Includes New Hardware & Ball Joints

WHAT’S INCLUDED:

  • Front Lower Control Arms - Front (Left & Right)
  • Front Lower Control Arms - Rear (Left & Right)
  • Front Upper Control Arms - Front (Left & Right)
  • Front Upper Control Arms - Rear (Left & Right)
  • Installation Hardware Kit

OE PART INTERCHANGE:

Upper Arms:

  • Control Arm, Upper Front Left: 4M0 407 505 B
  • Control Arm, Upper Front Right: 4M0 407 506 B
  • Control Arm, Upper Rear Left: 4M0 407 509 B
  • Control Arm, Upper Rear Right: 4M0 407 510 B
  • Control Arm, Lower Front Left: 4M0 407 151 L
  • Control Arm, Lower Front Right: 4M0 407 152 L
  • Control Arm, Lower Rear Left: 4M0 407 693 F
  • Control Arm, Lower Rear Right: 4M0 407 694 F
  • Ball Joint Front Right and Left: 4M0 407 689 C

Installation Note:

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.

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: 21824644509

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
Very comfortable !!
Color: White, Size: Standard/Queen
A little more than I was looking to spend but turned out to be worth the extra cost for the comfort !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2022
S
Verified Purchase
Scott Golby
Chelsea, US
★★★★★ 1
Awful, very soft not firm at all, shipped in a tiny box
Color: White, Size: Standard/Queen
So soft they were able to fold it multiple times over into a box a fraction of the size of the pillow. Firm description is completely misleading.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 25, 2022
D
Verified Purchase
Daemy Calero Ortega
Omaha, US
★★★★★ 5
Almoada
Color: White, Size: Queen Size Set of 2, Color: White, Size: Queen Size Set of 2
Hotel-like comfort at home I bought these pillows from Beautyrest and they really exceeded my expectations. They are very soft but at the same time have good support, which helps you rest better throughout the night. They feel like luxury hotel pillows, especially because of their down-like filling. The jumbo size is perfect and they come well filled, they are not easily crushed. In addition, the cotton cover feels fresh and of good quality. They arrived quickly and well packed. After using them for several days, they maintain their shape and comfort. I definitely recommend them if you are looking to improve your rest without spending too much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
Y
Verified Purchase
Yanaida Hernandez
Fort Morgan, US
★★★★★ 5
Great quality
Color: White, Size: Queen Size Set of 2
★★★★★ Super comfortable and supportive pillows! Great quality, soft but still keeps its shape. I’m sleeping much better now. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
Y
Verified Purchase
Yanira
Port Orchard, US
★★★★★ 5
They aren't super firm; they are more comfortable than rigid 😊
Color: White, Size: King Size Set of 2
I bought these pillows, and honestly, I really liked them. They have a medium firmness that helps significantly with neck pain, yet they remain soft and fluffy without going flat during the night. They hold their shape well and have good loft, so you don't have to keep adjusting them constantly. They don't have any unpleasant odor right out of the package, nor do they slide around much inside the pillowcase something I really appreciate. Overall, they feel comfortable and are of good quality for sleeping in any position.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026

recommand products