Audi A4/A5 | S4/S5 3.0L TFSI 2009-2015 AUBS4-QC11 ARMYTRIX Stainless Steel Valvetronic Catback Exhaust System Quad Carbon Tips 

Features:

- Main pipe diameter: 2X2.5"
- Tips: Quad 3.5"
- Exclusive System Features a Catalytic

- Converter & OPF Related Fault Code

- Clearing Mechanism – Reduces Chances of Check Engine Light

- Direct Bolt-On

- Plug-n-Play Module Reduces Installation

- Time by 30% Compared to Traditional Cable Wires

- App Controlled Valve System via OBDII Port

The Armytrix Stainless Steel Valvetronic Catback Exhaust System (AUBS4-QC11) for Audi A4/A5 and S4/S5 3.0L TFSI (2009–2015) stands out due to several key features that set it apart from other brands. Here’s what makes it better:

1. Valvetronic Technology

Armytrix incorporates its proprietary Valvetronic system, allowing the driver to adjust exhaust flow via remote control or the mobile app. This technology offers:

• Adjustable Sound Levels: You can switch between quiet, comfortable cruising and aggressive, race-inspired tones.

• Performance Optimization: The system intelligently balances backpressure and exhaust flow for maximum power.

2. Premium Materials and Build Quality

• T304 Stainless Steel: Armytrix uses high-grade stainless steel, which ensures durability, resistance to corrosion, and a polished aesthetic.

• Handcrafted Precision: The system is designed with attention to detail for a perfect fit and maximum performance gains.

3. Performance Gains

This exhaust system enhances power and torque due to its efficient design. By optimizing exhaust flow and reducing backpressure, it can deliver:

• Noticeable horsepower gains.

• Improved throttle response and overall driving dynamics.

4. Quad Carbon Fiber Tips

• The quad carbon fiber tips give the system a high-end, aggressive appearance that complements the sporty aesthetics of the A4/A5 and S4/S5 models.

• They are lightweight and resistant to heat, enhancing both form and function.

5. Weight Reduction

Armytrix exhaust systems are designed to be significantly lighter than OEM systems, improving handling and weight distribution without compromising quality.

6. Plug-and-Play Compatibility

This system is engineered for easy installation, with minimal modification required. It’s a direct bolt-on system that seamlessly integrates with the factory setup.

7. Advanced App Integration

• The Armytrix mobile app lets you control the Valvetronic system, monitor performance metrics, and track real-time data.

• Customizable settings allow you to tailor the system to your driving preferences.

8. Unique, Aggressive Sound

• Armytrix exhausts are renowned for their distinct, exhilarating exhaust notes, delivering a unique sound profile that distinguishes it from competitors.

9. Trusted Brand Reputation

Armytrix has established itself as a leading name in high-performance exhaust systems, backed by positive reviews and a global community of enthusiasts. Their focus on innovation, quality, and performance has earned them trust in the aftermarket community.

By combining cutting-edge technology, precision engineering and aesthetic appeal, the Armytrix AUBS4-QC11 provides a superior balance of performance, sound, and style, making it an excellent choice for Audi enthusiasts.

Note:

1) System doesn't fit to S4 B8 equipped with sport differential. 

2) Utilize VIN to verify fitment prior to installation.

3) Cat-Back system fit to both Left-Hand Drive/ Right-Hand Drive cars.
4) Armytrix OBDII Control Module required. 

Audi A4/A5 | S4/S5 3.0L TFSI 2009-2015 AUBS4-QC11 ARMYTRIX Stainless Steel Valvetronic Catback Exhaust System Quad Carbon Tips