Armytrix Valvetronic Stainless Steel Exhaust System for Audi A4 (B9) 2.0 TFSI Sedan/Avant 2021+

ARMYTRIX Valvetronic Stainless Steel Exhaust System for Audi A4 (B9) 2.0 TFSI

The ARMYTRIX AU942F-QC11 Valvetronic Stainless Steel Exhaust System is engineered specifically for the Audi A4 (B9) 2.0 TFSI Sedan / Avant 2WD Non-OPF (2021+). This system is designed to enhance performance while delivering a refined exhaust note that resonates with precision.

Key Features

• Material: High-quality stainless steel construction ensures durability and resistance to corrosion.
• Main Pipe Diameter: 3 inches, optimizing exhaust flow and reducing backpressure.
• Quad Tips: 3.5-inch chrome polished tips provide a sporty aesthetic.
• Valvetronic Technology: Allows for adjustable sound levels via a wireless remote or smartphone app, enhancing driving experience without compromising on comfort.
• Installation: Direct bolt-on design with a plug-and-play module that reduces installation time by 30% compared to traditional systems.

Performance Enhancements

This exhaust system is designed to improve power delivery, particularly in the low to mid RPM range. The unique Valvetronic system automatically adjusts exhaust valve positions based on throttle input and RPM, optimizing airflow for improved horsepower and torque when needed. When in race mode, the valves open fully to allow for unrestricted exhaust flow, resulting in an aggressive sound and enhanced performance.

• Compatible with S4 Style Quad diffuser on non-S-line rear bumper or S4 rear diffuser on S-line rear bumper.
• Verify fitment using your VIN prior to installation as there are different versions of OE exhaust.
• Designed for both Left-Hand Drive and Right-Hand Drive configurations.
• Requires ARMYTRIX OBDII Control Module for full functionality.

Included Components

• Front Pipe (AU942-BF)
• Mid Pipe (AU942-M1)
• Y-Pipe (AU942-M2)
• Valvetronic Mufflers (AU942-VML + AU942-VMR)
• Wireless Remote Control Kits (OWRC)
• Quad Carbon Tips (4xC11)

Valvetronic System Functionality

The Valvetronic system allows drivers to toggle between quiet and aggressive exhaust notes, catering to different driving conditions. By utilizing an OBDII module, the system intelligently controls the exhaust valves based on engine vacuum, RPM, and throttle position. This feature not only enhances sound dynamics but also contributes to power gains, particularly in turbocharged setups.