034Motorsport Density Line Rear Upper Adjustable Control Arms — VW/Audi PQ35, MQB & MQB Evo
034Motorsport Density Line Rear Upper Adjustable Control Arms
Adjustable rear upper control arms that replace the factory stamped steel arms outright, so camber stops being a fight with the eccentric bolt. CNC-machined billet bodies, forged steel rod ends and 90-durometer rubber bushings hold the geometry you set — under load, on track, and on the way home.
Sold as a pair · Free US shipping over $100 · Shipping calculated at checkout.
Overview
Camber you set once, and it stays there.
The factory rear upper arm is stamped steel with a soft bushing and one eccentric bolt's worth of adjustment. These replace it with a billet arm and a threaded rod end, which is the difference between hoping your alignment holds and knowing it does.
The Adjustment
About 5 degrees of range, in fine steps.
Roughly −2.4° to +2.6° beyond what the stock eccentric bolt gives you. The threaded rod end moves in 1/36" increments and each one is worth about 0.18°, so you can chase a number instead of splitting the difference and living with it.
The Build
Billet aluminum, not stamped steel.
CNC-machined 6061-T6 bodies, anodized black, paired with zinc-plated forged steel threaded rod ends. Far more durable than the factory stamped arm, and it doesn't flex its way out of spec the first time you load the rear axle.
The Bushings
90 durometer. Firm, not punishing.
High-durometer rubber cuts deflection under load so the geometry you dialed in is the geometry the car actually runs. 034 rates NVH on this arm as low to medium — it's a Density Line part, not a spherical one, so it stays livable on a daily.
The Install
Direct drop-in, both sides.
Straight swap for the factory rear upper control arms — no brackets, no modification, no cutting. Sold as a pair so the car goes back on the ground even. Get it aligned afterward and set your number properly.
Fitment
Will it fit?
Fits PQ35, MQB and MQB Evo platforms with independent rear suspension. Open your make below to find your car — if you're between platforms or unsure, send us your VIN and we'll confirm before you order.
By vehicle — Volkswagen 14 entries
| Model | Years | Chassis | Fitment |
|---|---|---|---|
| Golf / GTI / Rabbit | 2006–2009 | Mk5 | Direct Fit |
| Golf / GTI / Rabbit | 2010–2014 | Mk6 | Direct Fit |
| Golf / GTI / Rabbit | 2015+ | Mk7 / Mk7.5 | Direct Fit |
| Golf R | 2012 | Mk6 | Direct Fit |
| Golf R | 2015+ | Mk7 / Mk7.5 | Direct Fit |
| e-Golf | 2015–2020 | Mk7 / Mk7.5 | Direct Fit |
| R32 | 2008 | Mk5 | Direct Fit |
| Jetta / GLI | 2005–2010 | Mk5 | Direct Fit |
| Jetta / GLI | 2011–2017 | Mk6 | Direct Fit |
| Eos | 2006–2015 | Mk5 | Direct Fit |
| Passat | 2006–2010 | B6 | Direct Fit |
| Passat | 2012+ | B7 | Direct Fit |
| Tiguan | 2009–2011 | Gen 1 | Direct Fit |
| Tiguan | 2012+ | Gen 2 | Direct Fit |
By vehicle — Audi 14 entries
| Model | Years | Chassis | Fitment |
|---|---|---|---|
| A3 | 2006–2013 | 8P | Direct Fit |
| A3 | 2015+ | 8V | Direct Fit |
| S3 | 2006–2013 | 8P | Direct Fit |
| S3 | 2015+ | 8V | Direct Fit |
| RS3 | 2011–2013 | 8P | Direct Fit |
| RS3 | 2015–2017 | 8V | Direct Fit |
| RS3 | 2017+ | 8V.5 | Direct Fit |
| RS3 | 2022+ | 8Y | Direct Fit |
| Q2 | 2017–2021 | MQB | Direct Fit |
| Q3 | 2012+ | 8U | Direct Fit |
| RS Q3 | 2019+ | F3 | Direct Fit |
| TT / TTS | 2008–2015 | 8J | Direct Fit |
| TT / TTS | 2016+ | 8S | Direct Fit |
| TT RS | 2012–2013 / 2018+ | 8J / 8S | Direct Fit |
By vehicle — Seat / Cupra / Skoda 9 entries
| Model | Years | Chassis | Fitment |
|---|---|---|---|
| Cupra Formentor | 2021+ | Mk1 | Direct Fit |
| Seat Leon | 2006+ | Mk2 / Mk3 / Mk4 | Direct Fit |
| Seat Ateca | 2016–2021 | Mk1 | Direct Fit |
| Seat Tarraco | 2019–2021 | Mk1 | Direct Fit |
| Skoda Octavia | 2016+ | Mk1 (MQB) | Direct Fit |
| Skoda Kodiaq | 2016+ | Mk1 | Direct Fit |
| Skoda Karoq | 2017+ | Mk1 | Direct Fit |
| Skoda Superb | 2016–2020 | B8 | Direct Fit |
| Skoda Yeti | 2010–2018 | Mk1 | IRS Models Only |
Specification
The details.
FAQ
Questions, answered.
How much camber can I actually get?
About five degrees of range on top of what the factory eccentric bolt already offers — roughly −2.4° to +2.6°. Plenty for a track alignment, and plenty for aggressive rear fitment if that's your thing.
Will these make my car loud or harsh?
034 rates NVH on this arm as low to medium. They use a firm 90-durometer rubber bushing rather than a spherical bearing, so you get much less deflection without the noise that comes with a solid joint. NVH is subjective — some people notice more, some notice nothing.
Do I need an alignment afterward?
Yes. Fit them, set your target camber, then get the car on an alignment rack. Adjusting these without an alignment afterward is guessing.
Is this a pair or a single arm?
A pair — left and right. One kit does the whole rear axle.
Is there a minimum thread engagement?
Yes, and it matters. Never run the arms with fewer than 8 threads engaged in the aluminum body. Back the adjuster out too far and you compromise the joint.
What's the return policy?
Returns are handled under our standard refund policy. Reach out before sending anything back so we can sort it quickly.
Ready to dial it in?
Density Line Rear Upper
Adjustable Control Arms
PQ35 · MQB · MQB Evo · Sold as a pair