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In this suspension tuning guide, we'll explain how to reduce understeer and unlock more cornering grip from the Audi RS6 (C6). The following upgrades will also improve steering communication and enhance engagement.
The RS6's astounding five-litre V10 twin-turbo delivers exceptional performance. However, the weighty C6 platform struggles through corners even with Quattro all-wheel-drive boosting traction.
The great news is that bolt-on upgrades manufactured and supplied by Suspension Secrets cure the RS6's dynamic flaws. In this RS6 suspension tuning guide, we’ll explain how correcting front camber, replacing the soft rubber bushes, and uprating springs and dampers achieves superior cornering ability and boosts driving enjoyment.
RS6 Suspension & Handling Overview
The second-generation RS6 (C6) launched in late 2007. Its weapons-grade V10 twin-turbo ensured it was a force to be reckoned with, packing 580hp/650Nm of torque for a 4.5-second 0-62mph time and 155mph limited top speed.
Production of the C6-generation RS6 ended towards the end of 2010, but this short run was enough to secure its legendary status. The V10's sheer grunt was only partly tamed by the four-link front and rear double-wishbone setup, with ride height reduce by 20mm compared to lesser powered A6 Avants.
The C6 RS6 debuted Audi's Dynamic Ride Control (DRC) suspension system, which reduces body roll and pitching through hydraulically linked dampers. The RS6 also boasted stiffer springs and dampers than a regular A6.
RS6 Suspension Limitations
When driving an RS6 hard on the road or track, the C6 chassis reveals several dynamic flaws. Common complaints include:
- Front end understeer/push
- Steering low on feedback and weighing
- Underwhelming turn-in response
- Excessive front tyre wear on track
- Poor body control through transitions and during heavy braking
There is no doubting the C6 RS6's epic engine performance. However, this Audi could be so much more refined in its suspension responses. That's where aftermarket upgrades come in.
Common Handling Problems (And How To Fix Them)
The Audi RS6 suspension upgrades covered in this guide allow you to achieve the following...
1. Increase front camber and reduce understeer
2. Increase caster and enhance steering feel
3. Improve handling precision
4. Reduce the ride height and improve body control
Once these improvements have been made, the C6 RS6 will feel far more stable, precise and responsive at higher speeds. The car will also transmit grip levels to the driver with greater clarity, boosting overall confidence.
Suspension Geometry & Alignment Setup (Top Tip)
A full suspension geometry alignment is essential after installing new suspension parts. By correctly adjusting camber, toe, and caster (where available), alignment ensures you maximise grip, stability, and tyre life.
Benefits of an RS6 Geometry Setup
- Sharper steering response
- Increased cornering grip
- Improved rear traction
- Enhanced braking stability
A professional alignment is the single most cost-effective handling upgrade you can make.
Audi RS6 Suspension Upgrades
This section covers essential Audi RS6 (C6) suspension upgrades that will deliver a new level of handling performance on the road and track. These bolt-on parts are perfect if you are craving more engagement, response and feedback from your RS6.
SuperPro Performance Alignment Kit
The last C6-generation Audi RS6 was manufactured in 2010, so it's inevitable that original rubber suspension bushes will be well beyond their best. This will reduce handling stability and response, and further remove feedback from the already muted steering.
The solution is to install high performance polyurethane bushes from SuperPro. These replace the stock rubber bushes in the front and rear suspension arms, reducing flex during fast driving and improving handling precision.
Why RS6 Solid Bushes Matter
- Increased directional stability
- Crisper and more responsive steering
- Improved braking stability
- More predictable handling
The SuperPro Performance Alignment Kit for the Audi RS6 offers up to 0.5 degrees of camber adjustment, and introduces positive caster to enhance steering feel.
KW Height Adjustable Spring Kit
The C6 RS6 weighs around two tonnes and struggles to hide its mass when driven hard. Aftermarket lowering springs with a fixed reduction in ride height can improve chassis behaviour. However, owners looking for more flexibility in their ride height setup should consider the KW Height Adjustable Spring Kit.
A reduction in ride height will improve body control, increase turn-in response, and make the RS6 feel even more planted on the road. As the HAS Kit uses the stock dampers, the RS6's Dynamic Ride Control system is unaffected by the upgrade, too.
RS6 HAS Kit Benefits:
- Unlocks height adjustment on standard suspension
- Adaptive damper control system unaffected
- Enhances body control
- Improves road stance
KW V3 Clubsport Coilovers
If you are looking to fine-tune the RS6's ride quality and response to road surface undulations and track kerbs, then you should consider investing in coilovers. Aftermarket coilovers are a superb upgrade for fast road and track-focused RS6s.
The 2-way adjustable KW V3 Coilovers feature independent compression and rebound adjustment for increased chassis response, reduced body roll, and improved overall balance for road and track driving.
2-way Coilovers Benefits:
- Independent bump and rebound tuning
- Improves handling, grip and body control
- Offers ride height adjustment
- Suitable for the road and track
Audi RS6 Suspension FAQs
Why does the RS6 (C6) suffer from understeer?
The heavy V10 engine and front-biased weight distribution overload the front tyres during hard cornering. Limited factory camber adjustment and soft rubber bushes further reduce front-end grip and steering precision.
What is the best first suspension upgrade for the RS6?
A professional geometry setup combined with increased front camber delivers the biggest immediate improvement. This reduces understeer, sharpens turn-in response, and improves front tyre wear.
Do upgraded bushes really make a difference?
Yes. Replacing tired rubber bushes with performance polyurethane or solid alternatives reduces unwanted flex, improving steering accuracy, braking stability, and overall chassis precision.
Will lowering the RS6 improve handling?
Lowering the car with a height-adjustable spring kit improves body control, reduces roll, and enhances turn-in response while retaining compatibility with the factory Dynamic Ride Control (DRC) system.
Are coilovers worth it for road and track use?
Absolutely. Adjustable coilovers allow fine-tuning of rebound and compression damping, improving grip, balance, and stability. When properly set up, they dramatically increase driver confidence on both road and track.
Tested and developed by Suspension Secrets through extensive road and track evaluation, these upgrades unlock the full potential of the Audi RS6 (C6).