Description
Transform your Audi A4 B9 (2021+) with the Armytrix Valvetronic Stainless Steel Exhaust System, designed to enhance performance, reduce weight, and amplify sound. This system offers a noticeable increase in power, particularly in the low and mid rev ranges, giving your Audi a deeper, sportier exhaust note. The gold-coated exhaust tips complete the aggressive and luxurious look, making your A4 stand out on the road.
This exhaust system employs Valvetronic Technology—a unique feature that automatically adjusts the exhaust valves based on throttle input and engine RPM. This allows for optimized airflow, ensuring improved horsepower and torque, especially at high speeds, while providing a smooth driving experience during low RPMs. When you activate race mode, the valves open fully, unleashing the full, loud race sound and maximizing performance.
Key Features:
Enhanced Performance:
- Provides a performance boost, particularly in the low and mid-rev range, increasing horsepower and torque for a faster and smoother driving experience.
- Reduces overall vehicle weight, contributing to better performance and handling.
Valvetronic Technology:
- Throttle Pedal Sensor and Engine RPM Signal Auto Functions adjust the exhaust valve settings in real-time based on your driving style, ensuring better launch starts without sacrificing backpressure.
- At higher speeds, the valves automatically open to allow increased airflow, which translates into better performance (more HP and torque) and an enhanced exhaust sound.
- You can customize valve operation based on engine RPM and throttle input, giving you full control over exhaust sound and performance.
Dynamic Sound Control:
- In race mode, the exhaust opens fully, allowing the gases to flow through straight pipes, creating a loud, aggressive race car sound.
- The system neutralizes annoying frequencies in the critical RPM range, providing a deep, resonant sound that is perfect for daily driving and spirited driving.
Sleek Aesthetic:
- Featuring quad gold-coated exhaust tips (3.5” each), this system adds an exclusive look to your A4, making it as stylish as it is powerful.
App-Controlled System:
- The Armytrix app allows you to control the exhaust valve settings via the OBDII port, providing a simple and efficient way to adjust your exhaust to match your driving preferences.
- Plug-n-Play Module simplifies installation and saves time compared to traditional cable-based systems.
Specifications:
- Main Pipe Diameter: 3 inches
- Tip Size: Quad 3.5 inches
- Catalytic Converter & OPF Fault Code Clearing Mechanism: Helps avoid triggering the Check Engine Light.
- Direct Bolt-On Installation: Designed for an easy, no-modification fitment.
- Plug-n-Play Valve Control: Eliminates the need for complex wiring, reducing installation time by 30%.
Included Components:
- 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)
Fitment:
- Make: Audi
- Model: A4, A4 Avant (2021-2024)
- Fitment Notes:
- Compatible with S4 Style Quad Diffuser on non-S-line rear bumpers, or S4 rear diffuser on S-line rear bumpers.
- Ensure proper fitment by using your VIN before installation.
- Left-Hand Drive (LHD) and Right-Hand Drive (RHD) configurations are supported.
Additional Notes:
- The system requires the Armytrix OBDII Control Module for the full app-controlled valve system.
- Only compatible with non-OPF models.
