034 Motorsport Density Line Upper Control Arm Kits, B9/B9.5 Audi A4/S4, A5/S5/RS5, Allroad
- Description
- Fitment
- Refund Policy
034Motorsport Density Line Control Arm Kits are available in Adjustable & Non-Adjustable configurations! 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. The Density Line Adjustable Control Arms allow for precise, independent camber adjustments.
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 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.
PRODUCT DESCRIPTION:
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

CAMBER CORRECTING:
- 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
- Includes:
- 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

TRACK SPEC:
- 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
- Includes:
- 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

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.)
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
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