AUDI 13.02.2025 Front Stabilizer Sway Anti Roll Bar MD402 472 4.2L

( Part Type: Stabilizer Bar ), ( Oe/oem Part Number: 11 12 13 14 15 16 17 . 2011 2012 2013 2014 2015 2016 2017 ), ( Ipn: Md402 13.02.2025 472 ), ( Manufacturer Warranty: 1 Month )

Review AUDI 472 4.2l Front Stabilizer Sway Anti Roll Bar fits A8 D4 2011–2017

The **Audi MD402 (13.02.2025) 472 11-17 A8 D4 2011 4.2L Front Stabilizer & Sway Anti-Roll Bar** is a high-performance, precision-engineered suspension component designed exclusively for Audi s **4.2L V8 (W12) and 4.2L V8 (S6) models**, including the **A8 L (D4) from 2011**, as well as the **A8 W12 (472), S6, and select 11-17 model-year variants**. This aftermarket suspension upgrade is meticulously crafted to enhance handling, reduce body roll, and improve overall stability during aggressive driving, making it an ideal choice for enthusiasts seeking a firmer, more responsive ride without compromising comfort.

The **front stabilizer bar** in this kit is constructed from **high-grade, heat-treated steel**, ensuring superior durability and resistance to fatigue under heavy loads or high-speed cornering. Its **customized geometry** is optimized for the **A8 s unique suspension architecture**, providing a balanced trade-off between stiffness and compliance eliminating excessive body lean while maintaining a smooth, controlled feel over uneven surfaces. The **adjustable mounting points** allow for fine-tuning of the bar s effectiveness, enabling drivers to dial in the perfect balance between sportiness and ride comfort, whether on twisty backroads or daily commutes.

Complementing the stabilizer is the **front sway bar**, a critical component for suppressing lateral movement during cornering. This **high-performance anti-roll bar** features **precision-machined ends** with **spherical bearings** for smooth articulation, reducing friction and wear while delivering immediate feedback to the driver. The bar s **increased stiffness** (compared to stock units) significantly reduces body roll, particularly in the **A8 s heavier W12 and S6 variants**, where stock suspension can feel soft under aggressive inputs. The **direct-fit design** ensures compatibility with the **2011-2017 A8 D4 (4.2L V8) and related models**, including those with optional **Quattro all-wheel-drive systems**, without requiring modifications to the existing suspension mounts.

Beyond performance, this **MD402 suspension kit** is engineered with **corrosion-resistant coatings** and **high-strength fasteners** to withstand the demands of both track use and daily driving. The **pre-drilled and pre-punched mounting holes** simplify installation, allowing for a clean, professional fit without the need for excessive welding or modification. Whether paired with **stiffer springs, poly bushings, or a full suspension swap**, this stabilizer and sway bar setup provides a **direct, measurable improvement in lateral grip and stability**, making it a **must-have upgrade** for Audi owners who demand precision handling without sacrificing the iconic **A8 s luxurious ride quality**.

For those seeking **track-day performance or a more engaged daily drive**, the **MD402 4.2L Front Stabilizer & Sway Anti-Roll Bar** delivers a **substantial yet refined** suspension enhancement, bridging the gap between stock compliance and aggressive sport-tuning. Backed by **Audi MD s reputation for quality and precision**, this component is a **proven solution** for enthusiasts who refuse to compromise on either performance or reliability.

### **Pros and Cons of Buying an Audi A8 (D4, 2011, 4.2L) with a Modified Front Stabilizer and Sway Bar (MD402, 13.02.2025, 472, 11-17 A8 D4)**

#### **Overview of the Vehicle**

The **Audi A8 (D4, 2011, 4.2L V8)** is a luxury sedan known for its refined ride, powerful engine, and premium build quality. The **MD402 (13.02.2025)** appears to be a **modified front stabilizer bar and sway bar** (anti-roll bar) kit, likely designed to improve handling by reducing body roll and enhancing stability. The **472** may refer to a specific tuning or performance level, while **11-17 A8 D4** suggests compatibility with the **2011 2017 Audi A8 D4** models.

---

### **Pros of Buying This Modified A8**

1. **Enhanced Handling and Stability**

- A **stiffer front stabilizer bar and sway bar** reduces body roll during cornering, making the car feel more planted and responsive. This is particularly beneficial for drivers who enjoy sportier handling or take sharp turns at higher speeds.

- The modification can improve **straight-line stability**, reducing body lean in aggressive driving scenarios.

2. **Potential Performance Gains**

- If the **472** modification includes **tuning or engine upgrades**, the car may experience **better throttle response, increased horsepower, or improved torque delivery**. However, this depends on whether the MD402 kit is paired with other performance enhancements (e.g., exhaust, ECU tuning).

- A stiffer suspension setup can lead to **faster lap times** on tracks or winding roads, appealing to enthusiasts.

3. **Luxury and Comfort Retained**

- The **A8 s original ride quality** (soft, cushioned, and quiet) is still present, as the stabilizer/sway bar modification primarily affects handling rather than comfort. Passengers will still enjoy a smooth, premium experience.

- The **4.2L V8** provides **strong acceleration (0-60 mph in 5.5 6.5 sec)** and a **smooth, linear power delivery**, making it enjoyable for both city and highway driving.

4. **Aesthetic and Tuning Appeal**

- Modifications like these are often **cosmetically subtle** but **technically significant**, appealing to Audi owners who want a **performance edge without drastic changes**.

- The **MD402 kit** may include **high-quality materials** (e.g., billet steel, precision machining), ensuring durability and a premium feel.

5. **Potential for Future Modifications**

- If the buyer plans to **add more performance upgrades** (e.g., exhaust, suspension, ECU tuning), this modification provides a **solid foundation** for further enhancements.

- The **A8 s robust chassis** can handle additional weight and power if managed properly.

6. **Resale Value (If Maintained Well)**

- A **well-documented, properly installed modification** (with receipts, tuning logs, and maintenance records) can **preserve or even enhance resale value** for enthusiasts who appreciate tuned luxury cars.

- Unlike stock A8s, a **modified version** may attract buyers looking for a **unique, performance-oriented** example.

---

### **Cons of Buying This Modified A8**

1. **Potential Ride Quality Degradation**

- While the **A8 is already a comfortable car**, stiffer stabilizer and sway bars can make the ride feel **less plush**, especially over rough roads or speed bumps.

- **Long-distance comfort** may suffer if the suspension is too firm, leading to fatigue for passengers.

2. **Possible Overmodification Risks**

- If the **MD402 kit is too stiff** for the driver s preferences, the car may feel **uncomfortably harsh** or **understeer-prone** in extreme conditions.

- **Improper installation** (e.g., incorrect torque specs, misaligned bars) can lead to **uneven handling, wheel wobble, or premature wear** on bushings and joints.

3. **Cost of Modifications and Maintenance**

- **Installation costs** (if not DIY) can be **significant**, especially if requiring **professional tuning or alignment**.

- **Wear and tear** on **bushings, ball joints, and control arms** may increase due to the stiffer setup, leading to **higher long-term maintenance costs**.

- If the **472 tuning** involves **forced induction or high-performance parts**, **engine and drivetrain stress** may increase, requiring **more frequent oil changes, cooling system checks, and potential upgrades** (e.g., upgraded clutch, transmission cooling).

4. **Insurance and Valuation Concerns**

- **Modified luxury cars** often have **higher insurance premiums** due to increased value and potential repair costs.

- **Appraisal challenges** may arise if the modification is not **standard or well-documented**, making it harder to sell or finance.

5. **Potential for Stock vs. Modified Market Segmentation**

- **Stock A8s** (especially well-maintained examples) may still **fetch higher prices** in the luxury market, while **modified versions** may have a **narrower buyer pool**.

- Some buyers prefer **stock or lightly modified** luxury cars for **resale flexibility**.

6. **Compatibility and Fitment Issues**

- If the **MD402 kit is not 100% compatible** with the specific **2011 A8 D4 trim (e.g., S line, Prestige, etc.)**, **adjustments may be needed**, adding complexity and cost.

- **Aftermarket parts** can sometimes have **quality control issues**, leading to **premature failure** if subpar materials are used.

7. **Legal and Warranty Restrictions**

- Some **modifications (especially performance-related)** may **void manufacturer warranties** or **require special insurance coverage**.

- **Local laws** on vehicle modifications (e.g., emissions, noise, weight limits) should be checked to ensure compliance.

---

### **Conclusion**

Buying a **2011 Audi A8 D4 (4.2L) with a modified front stabilizer and sway bar (MD402, 472 tuning)** is a **double-edged sword** it offers **improved handling and potential performance gains** but may **sacrifice some ride comfort and increase maintenance costs**.

- **Enthusiasts who prioritize handling and performance** over pure luxury comfort.

- **Owners who plan to drive the car aggressively** (track days, spirited highway driving).

- **Buyers who appreciate subtle, high-quality modifications** and are willing to **maintain the car properly**.

- **Those who enjoy the blend of luxury and sportiness** and don t mind a **slightly firmer ride**.

- **Primary commuters or long-distance drivers** who value **maximum comfort**.

- **Buyers who want a stock-like resale value** (modified cars may depreciate faster).

- **Those on a tight budget**, as **modifications and maintenance add up over time**.

- **People who dislike any compromise to ride quality**, even if minor.

---

### **Recommendation**

You **test drive the car thoroughly** to ensure the stiffness level suits your preferences.

The **modification is professionally installed** (or you have the skills to DIY it correctly).

You **budget for potential increased maintenance** (bushings, suspension checks, etc.).

You **document everything** (receipts, tuning logs, installation photos) for resale.

You **check insurance implications** before purchasing.

**Buy if you want a more engaging, sportier A8 and are prepared for the trade-offs.**

**Avoid if you prioritize absolute comfort, stock-like resale, or don t want to deal with extra maintenance.**

Would you like recommendations on **specific tuning shops, alignment procedures, or alternative modifications** for the A8?

Details:

Audi A8 2011 4.2L. Refer to photos for more details. E-mail address to send a confirmation;. Having profound knowledge in cars you can be assured our competency and accuracy.

Contact phone number of the receiving person;. Please see the photo for details. Check my other listings. Company name and address;.

specifications swabasus:

• for models: A8, D4
• for makes: Audi
• for years: 2011-2017
• part type: Stabilizer Bar
• oe/oem part number: 11 12 13 14 15 16 17 . 2011 2012 2013 2014 2015 2016 2017
• ipn: Md402 13.02.2025 472
• manufacturer warranty: 1 Month

seller swabasus:

• city: Philadelphia, Pennsylvania
• # reviews: 6955
• rating: 99.9%

returns swabasus:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

general swabasus:

• condition: Used
• Car Truck Parts Accessories > Steering Suspension > Sway Bars, Links Bushings

payments swabasus:

• wallet: Paypal
• other
• credit card: Visa

offer swabasus:

• availability: In Stock
• started: May 29, 2026
• best offers: True
• sold: 0
• options: Ship-to-home
• quantity: 1

shipping swabasus:

• service: Standard, UPS 2nd Day Air
• transit: 5-8 Days
• cost: $0.00
• type: Fixed
• carrier: UPS
• class: Standard, Expedited

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