PORSCHE 9913431738A Cup Anti Roll Bar Front Axle Stabiliser

( Manufacturer Part Number: 9913431738A ), ( Part Type: Bar Axle ), ( Placement On Vehicle: Front ), ( Items Included: Cup ), ( Mounting Position: Front, Ahead ), ( Product Type: Stabilizer ), ( Color: Black ), ( Country Of Origin: Germany )

Review PORSCHE 991 Cup Anti Roll Bar Front Axle Stabiliser fits GT3 911

The **Porsche 991.3 (981.3) 911 GT3 Cup Front Axle Stabilizer (Anti-Roll Bar)** part number **9913431738A** represents a precision-engineered component designed exclusively for the high-performance, track-focused evolution of the iconic 911. This front axle stabilizer is a critical element of the GT3 Cup s dynamic handling package, engineered to enhance cornering stability, reduce body roll, and deliver razor-sharp responsiveness under aggressive driving conditions. Crafted from high-grade steel and meticulously tuned to Porsche s exacting standards, the stabilizer features a robust, multi-link design optimized for the 991.3 s updated suspension geometry, ensuring seamless integration with the car s revised front subframe and steering linkage. Its compact yet rigid construction minimizes parasitic weight while maximizing torsional stiffness, allowing the GT3 Cup to maintain lateral grip and predictability at the limits of adhesion whether on a racetrack or a winding mountain road. The stabilizer s precise calibration complements the car s aggressive coilover springs, sport-tuned dampers, and widened track, creating a harmonious balance between understeer resistance and oversteer control. Ideal for both track-focused enthusiasts and those seeking a more aggressive street performance, this component is a direct upgrade from the standard 911 GT3 stabilizer, offering a noticeable improvement in body control and a more engaged driving experience. Whether installed as part of a full track package or as a standalone performance enhancement, the **9913431738A** stabilizer ensures that the GT3 Cup s legendary rear-wheel-drive character is amplified with the precision and confidence demanded by modern motorsport.

### **Pros and Cons of Buying a Porsche 991 (991.3) 911 GT3 Cup with Modified Front Axle Stabilizer (Anti-Roll Bar)**

#### **Pros**

1. **Performance Enhancement** The GT3 Cup variant is already a high-performance track-focused model, and modifying the front axle stabilizer (anti-roll bar) can further reduce body roll, improving cornering stability and handling precision. This is particularly beneficial for track use or aggressive driving.

2. **Track-Oriented Tuning** The GT3 Cup is designed with performance in mind, featuring a lightweight body, high-revving engine, and a rear-biased weight distribution. The stabilizer modification aligns with track-focused modifications, making it ideal for enthusiasts who prioritize performance over daily comfort.

3. **Enhanced Driver Engagement** Reducing body roll allows for tighter, more responsive cornering, which can make the car feel more connected and engaging to drive, especially on twisty roads or at the track.

4. **Potential for Further Modifications** Since the GT3 Cup is already a performance-oriented model, additional upgrades (suspension, brakes, exhaust, etc.) can be easily integrated, allowing for a fully customized track or street-legal setup.

5. **Resale Value (Among Enthusiasts)** Porsche 991 GT3 models, especially those with track modifications, hold strong resale value within the performance car community. A well-maintained GT3 Cup with documented modifications may appeal to buyers looking for a prepped track car.

6. **Aesthetic Appeal** The GT3 Cup s aggressive stance, lightweight construction, and track-focused design give it a distinct look that sets it apart from standard 911 models. Modifying the stabilizer can further refine its sporty appearance.

7. **Engineering Legacy** The 991 GT3 Cup continues Porsche s tradition of producing high-performance, track-ready cars. Owning one means being part of a legacy of engineering excellence, which can be appealing to purists.

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#### **Cons**

1. **Harsh Ride Quality** The stabilizer modification will make the ride significantly firmer, reducing comfort on rough roads or long drives. This can lead to fatigue during extended trips or on poorly maintained highways.

2. **Potential for Wear and Tear** A stiffer suspension setup increases stress on tires, bushings, and other suspension components. This may lead to more frequent wear, especially if the car is driven aggressively or on rough surfaces.

3. **Maintenance Costs** High-performance Porsches, even in GT3 form, require specialized maintenance. Modifications like a stiffer stabilizer may necessitate additional checks on suspension geometry, alignment, and tire wear, adding to long-term costs.

4. **Insurance Considerations** Modified Porsches, particularly those with track-focused upgrades, can be expensive to insure. The insurer may classify the car as a "high-risk" or "performance" vehicle, leading to higher premiums.

5. **Daily Drivability Issues** While the GT3 Cup is already less comfortable than a standard 911, the stabilizer modification will make it even less suited for daily use. Features like long-distance comfort, passenger space, and ease of handling are compromised.

6. **Legal and Warranty Implications** Modifying the stabilizer may void the factory warranty or require the owner to carry full coverage insurance. Additionally, some modifications may not be street-legal in all regions without additional compliance (e.g., homologation for track use).

7. **Cost of Modifications** While the stabilizer itself may not be extremely expensive, labor, alignment, and potential additional upgrades (e.g., new bushings, sway bars) can add up. The total cost of a full track setup can be substantial.

8. **Limited Practicality** The GT3 Cup is already a niche car, and further modifications may reduce its appeal to casual buyers. If the car is ever sold, finding a buyer who appreciates the track-focused nature may be challenging unless marketed correctly.

9. **Potential for Overmodification** Adding a stiffer stabilizer without balancing other suspension components (e.g., springs, shocks, bushings) can lead to handling issues like understeer, oversteer, or uneven tire wear. Poorly executed modifications can degrade performance rather than improve it.

10. **Depreciation Risk** While Porsche 911s generally hold value well, heavily modified track cars may depreciate faster than stock or lightly modified examples. Buyers who prioritize resale value may prefer a more street-legal configuration.

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### **Conclusion**

Buying a Porsche 991 GT3 Cup with a modified front axle stabilizer is a **highly rewarding choice for enthusiasts who prioritize performance, track use, and driver engagement** over daily comfort and practicality. The modifications will significantly enhance the car s handling and cornering ability, making it one of the most responsive 911s available. However, the trade-offs in ride quality, maintenance costs, and insurance expenses are substantial.

- Owners who primarily use the car on the track or for spirited driving.

- Those willing to invest in maintenance and modifications to keep the car in peak condition.

- Enthusiasts who value the car s performance legacy and are prepared for the challenges of owning a high-performance Porsche.

For **casual drivers, daily commuters, or those who prioritize comfort and resale value**, the GT3 Cup with a modified stabilizer is likely overkill. In such cases, a stock or lightly modified GT3 (or even a GT3 RS) may offer a better balance of performance and practicality.

### **Recommendation**

If you are **certain** about your commitment to track use and are prepared for the associated costs and trade-offs, proceed with the purchase and modifications. Ensure that:

- The stabilizer is installed by a reputable Porsche specialist to avoid handling issues.

- The suspension is balanced with appropriate springs, shocks, and bushings.

- You have a budget for maintenance, insurance, and potential future upgrades.

- You are comfortable with the car s limitations on the street.

- Starting with a stock or lightly modified GT3 to gauge your commitment.

- Exploring other Porsche models (e.g., 911 Turbo S, 718 Cayman GT4) that offer a better balance of performance and practicality.

- Renting or leasing a track-focused car before committing to a full purchase.

Ultimately, the 991 GT3 Cup with a modified stabilizer is a **dream machine for the right owner** one who lives for performance and is willing to embrace the challenges that come with it.

Details:

Used, removed from 991.1 Cup car with 81 hours.

part #: 9913431738a prices

• $600.00-$938.35

specifications swabasus:

• for models: Gt3, 911
• for makes: Porsche
• mpn: 9913431738a
• part type: Bar Axle
• placement on vehicle: Front
• items included: Cup
• mounting position: Front, Ahead
• product type: Stabilizer
• color: Black
• country of origin: Germany

payments swabasus:

• wallet: Google-pay
• credit card: Discover
• other

returns swabasus:

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

seller swabasus:

• city: Orlando, Florida
• rating: 100.0%
• # reviews: 1356

shipping swabasus:

• type: Calculated
• cost: $26.04
• service: UPS Ground
• carrier: UPS
• class: Standard
• transit: 3-8 Days

general swabasus:

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

offer swabasus:

• options: Ship-to-home
• quantity: 1
• best offers: True
• sold: 0
• availability: In Stock
• started: April 20, 2026

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