Armytrix Valvetronic Stainless Steel Exhaust System Audi A4 B9 2.0 TFSI Sedan Avant 2021+

Upgrade Your Audi A4 B9 with the Armytrix Valvetronic Exhaust System

If you're an Audi A4 B9 owner looking to enhance your driving experience, the Armytrix Valvetronic Stainless Steel Exhaust System (AU942F-QS11G) is a game changer. Designed specifically for the 2021-2024 Audi A4, this exhaust system not only boosts power and reduces weight, but it also transforms your car's sound profile into something truly exhilarating.

Performance Benefits

This precision-engineered exhaust system is crafted to deliver substantial gains in the low and mid RPM range, giving you that much-needed punch during everyday driving. You'll appreciate the deep, resonant tone that adds a sporty character to your A4, while effectively neutralizing those annoying frequencies that can detract from your driving pleasure. Plus, with its quad chrome polished tailpipes, your A4 will not only sound good but look the part as well.

Innovative Valvetronic Technology

What sets the Armytrix system apart from the competition is its unique Valvetronic feature. This system utilizes a Throttle Pedal Sensor and Engine RPM Signal Auto Function that allows for a seamless transition between quiet and aggressive exhaust notes. At low RPMs, the valves close to maintain backpressure for better launch starts. As you accelerate, the valves open up to unleash improved airflow, enhancing horsepower and torque. You can even customize when the valves open and close based on your throttle input or RPM, giving you complete control over your sound and performance.

Installation and Compatibility

• Includes:
  • Front Pipe (AU942-BF)
  • Mid Pipe (AU942-M1)
  • Y-Pipe (AU942-M2)
  • Valvetronic Mufflers (AU942-VML + AU942-VMR)
  • Wireless Remote Control Kit (OWRC)
  • Quad Gold Tips (4xS11G)
• Main Pipe Diameter: 3 inches
• Tip Size: Quad 3.5 inches
• Installation: Direct bolt-on with a plug-and-play module that reduces installation time by 30% compared to traditional setups.
• App Controlled: Valve system can be controlled via OBDII port and smartphone app.

Important Notes

• This exhaust system is compatible with S4 style quad diffusers on non-S-line rear bumpers or S4 rear diffusers on S-line rear bumpers.
• Verify fitment using your VIN, as there are various versions of the OE exhaust.
• Compatible with both left-hand drive and right-hand drive vehicles.
• Armytrix OBDII Control Module is required for operation.

Experience the Difference

With the Armytrix Valvetronic Exhaust System, you're not just upgrading your exhaust; you're enhancing your entire driving experience. Whether you're cruising through the city or hitting the open road, this system will make every drive unforgettable.