fits model: E60, M5, S85, E61. make: Bmw. year: 2006–2010.

( Manufacturer Part Number: 31356769499 ), ( Part Type: Door Suspension Stabilizer Bar ), ( Country Of Origin: Germany )
The **BMW E60 M5 (S85) V10 Door 31356769499 Front Suspension Stabilizer Sway Bar Link (Left & Right, E61 06-10 Compatible)** is a high-performance, precision-engineered suspension component designed exclusively for the legendary BMW E60 M5 (S85) and its close cousin, the E61 M5 (06-10 models). This sway bar link serves as a critical link in the vehicle s front anti-roll bar system, ensuring optimal lateral stiffness while maintaining smooth handling and stability under both everyday driving conditions and high-performance scenarios. Crafted from durable, high-grade steel, this link is built to withstand the immense forces generated by the E60 s powerful 5.0L V10 twin-turbocharged engine, which produces over 500 horsepower and 480 lb-ft of torque. The design incorporates a robust, reinforced construction with a threaded connection that allows for precise adjustment, enabling tuners and enthusiasts to fine-tune the vehicle s roll characteristics for improved cornering grip or a more compliant ride, depending on preference. Whether you re seeking to enhance the M5 s already razor-sharp handling for track use or simply restoring factory-like performance after modifications, this sway bar link is a direct-fit replacement that guarantees compatibility with the original E60 M5 s suspension geometry. Its inclusion in a full suspension rebuild or as a standalone upgrade ensures that the front anti-roll bar operates with the same level of reliability and responsiveness as BMW intended, reinforcing the M5 s reputation as a driver s car that seamlessly balances raw power with razor-sharp precision. Ideal for both restoration projects and performance upgrades, this component is a must-have for any owner looking to maintain or elevate the E60 M5 s legendary driving dynamics.
### **Pros and Cons of Buying a BMW E60 M5 (S85) V10 (2006 2010) with a Left/Right Front Suspension Stabilizer Sway Bar Link (Part #31356769499, E61 Compatible)**
#### **Overview**
The BMW E60 M5 (S85) is a legendary performance sedan known for its powerful V10 engine, aggressive handling, and strong aftermarket support. The front sway bar link (part #31356769499, also compatible with the E61 5 Series) is a common upgrade for those looking to improve stability, reduce body roll, and enhance cornering precision. Below is a detailed breakdown of the pros and cons of purchasing this specific part for your E60 M5.
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### **Pros of buying a Front Sway Bar Link (31356769499)**
1. **Improved Handling and Stability**
- The stock sway bar links on the E60 M5 are often criticized for being too soft, leading to excessive body roll, especially at higher speeds or during aggressive cornering.
- Upgrading to a stiffer or more precise link (such as a billet aluminum or high-quality steel version) reduces body lean, making the car feel more planted and responsive. This is particularly noticeable in spirited driving or track use.
2. **Better Weight Distribution**
- The E60 M5 is a heavy car (over 4,000 lbs with the V10), and any improvement in suspension geometry helps mitigate weight transfer during cornering.
- A properly adjusted sway bar link can help maintain more even weight distribution between axles, reducing understeer in fast corners.
3. **Compatibility with Other Modifications**
- The E60 M5 benefits from a wide range of suspension upgrades (coilovers, lower springs, sway bar upgrades). The sway bar link is a foundational part of this ecosystem.
- Since this part is also compatible with the E61 5 Series, it can be a cost-effective way to standardize parts if you own or plan to modify both models.
4. **Durability and Longevity**
- High-quality sway bar links (especially billet aluminum or forged steel versions) are designed to last the life of the car with proper maintenance.
- They are less prone to wear compared to stock rubber bushings, which can degrade over time, leading to rattles or loss of precision.
5. **Easy Installation**
- The sway bar link is a relatively straightforward bolt-on part. Installation typically requires removing the sway bar (if not already done) and swapping out the old link with the new one.
- No major modifications to the car are needed, making it a low-risk upgrade.
6. **Aesthetic and Performance Synergy**
- For enthusiasts who prioritize both looks and performance, upgrading the sway bar link can complement other aesthetic mods (e.g., lower suspension, wider wheels) while directly improving handling.
- A stiffer link can also help reduce "sway bar dive" during hard braking, improving overall feel.
7. **Aftermarket Support and Customization**
- The E60 M5 has a vast aftermarket, with options for adjustable sway bar links (e.g., from companies like **Hotchkis, Eibach, or Bilstein**), allowing fine-tuning of stiffness to match driving style or track demands.
- Some links come with upgraded bushings (polyurethane or rubber) that reduce flex and improve feedback.
8. **Potential for Increased Resale Value**
- For enthusiasts who maintain or modify their E60 M5, having upgraded suspension components can make the car more appealing to other collectors or performance-focused buyers.
- A well-documented mod history (including sway bar links) can justify a higher price in the used market.
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### **Cons of buying a Front Sway Bar Link (31356769499)**
1. **Cost Relative to Performance Gain**
- While not extremely expensive (typically $50 $150 for a quality pair), the sway bar link is a single-point upgrade. The performance improvement, while noticeable, may not be as dramatic as other mods (e.g., coilovers, exhaust, or engine tuning).
- If your primary goal is raw power, this mod will have a minimal impact compared to engine or drivetrain upgrades.
2. **Requires Additional Modifications for Full Effect**
- The sway bar link alone won t transform the E60 M5 into a track weapon. To fully realize its benefits, it should be paired with:- Lowered suspension (coilovers or springs)
- Stiffer sway bars (or adjustable sway bars)
- Upgraded bushings (e.g., poly bushings on control arms)
- Tires with better grip (e.g., high-performance or track tires)
- Without these, the improvement may feel subtle or uneven.
3. **Potential for Over-Tightening**
- Some drivers may be tempted to make the sway bar links *too* stiff, which can lead to:- Excessive understeer (the car pushes instead of turning).
- Increased stress on other suspension components (e.g., control arms, bushings).
- A harsher ride quality, especially on rough roads.
- Proper tuning is essential to avoid compromising comfort or stability.
4. **Installation Quality Varies by Supplier**
- While the part itself is simple, the quality of bushings, materials, and machining can vary between manufacturers.
- Cheaper links may flex or wear out faster, negating the upgrade s benefits.
- Always research brands (e.g., **Bilstein, Hotchkis, or custom billet links**) and read reviews before purchasing.
5. **Compatibility Considerations**
- The part number **31356769499** is listed as compatible with both the E60 M5 and E61 5 Series. However:- The E60 M5 s sway bar link may require slight adjustments for perfect fitment (e.g., bolt spacing or mounting holes).
- Some aftermarket links may not fit perfectly without modification, requiring machining or custom fabrication.
- Always verify fitment with your specific car s sway bar and suspension geometry.
6. **Maintenance and Wear**
- Even high-quality sway bar links can wear out over time, especially if driven aggressively or on rough roads.
- Bushings may degrade, leading to rattles or loss of precision. Regular inspections are recommended.
- Replacement intervals depend on driving conditions but are generally longer than stock rubber bushings.
7. **Limited Impact on Ride Comfort**
- The E60 M5 is already a stiff ride, and making the sway bar links stiffer will not significantly improve comfort.
- If ride quality is a priority, other mods (e.g., softer springs, adjustable dampers) will have a more noticeable effect.
8. **Potential for Voiding Warranty (If Applicable)**
- If your car is still under warranty (unlikely for a 2006 2010 model), installing aftermarket parts may void coverage.
- Always check with your insurer or BMW dealer before proceeding with modifications.
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### **Conclusion**
The **BMW E60 M5 front sway bar link (31356769499)** is a worthwhile upgrade for enthusiasts looking to refine their car s handling, reduce body roll, and enhance stability especially when paired with other suspension mods. It is a relatively low-cost, easy-to-install part that can make a noticeable difference in spirited driving or track use.
However, it is not a "magic bullet" for handling issues. To fully benefit, it should be part of a broader suspension upgrade plan, including lower springs, stiffer sway bars, and proper tire selection. Additionally, the quality of the part matters, and poor aftermarket options can lead to premature wear or fitment issues.
For the average E60 M5 owner who enjoys driving hard but doesn t plan to race, this upgrade is **highly recommended** as a step toward a more precise and engaging driving experience. For those focused solely on raw power or comfort, the benefits may be less compelling.
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### **Final Recommendation**
**Buy the sway bar link (31356769499) if:**- You are already modifying your E60 M5 s suspension (e.g., with coilovers, lower springs, or stiffer sway bars).
- You want to reduce body roll and improve cornering stability without a major investment.
- You prioritize handling over comfort and plan to drive the car aggressively.
- You choose a reputable brand (e.g., billet aluminum or high-quality steel) to ensure durability and precision.
**Avoid or delay buying it if:**- You are not planning other suspension upgrades, as the benefits will be limited.
- You are primarily concerned with comfort or daily driving rather than performance.
- You cannot verify fitment or quality before purchasing (always check reviews and supplier reputation).
- Your budget is tight, as there are more impactful mods (e.g., exhaust, engine tuning) that offer better performance gains.
**Best Approach:**- Pair this upgrade with **stiffer sway bars** (e.g., Hotchkis or Eibach) and **polyurethane bushings** for the control arms.
- Consider **adjustable links** if you want to fine-tune stiffness for different driving conditions.
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ENGINE SIZE: V10 5.0L 10 CYLINDER. ORIGINAL OEM BMW E60 M5 USED PARTS. VEHICLE: BMW E60 M5. TRANSMISSION: 6 SIX SPEED MANUAL.