Armytrix Audi A4 B9 2.0 TFSI Sedan/Avant (2WD) 2016- valvetronic exhaust system

Ignite the bold performance character of your Audi A4 B9 2.0 TFSI Sedan or Avant with the Armytrix Valvetronic Exhaust System—an aggressive yet refined upgrade tailored specifically for Non-OPF, 2WD models (2016–Present). Designed to amplify the sound, improve throttle response, and offer real-time control, this system transforms your A4 into a truly dynamic daily performer.

Crafted from 3” mandrel-bent stainless steel piping and finished with quad 3.5” tips, the system delivers a deep, turbocharged exhaust note while elevating the rear-end aesthetics. Engineered for plug-and-play integration, the Armytrix exhaust is ideal for those who demand performance, sound, and smart control—all in one package.

Key Features:

• Designed for Audi A4 B9 2.0 TFSI Sedan/Avant (2WD, Non-OPF, 2016–Present)

• Main pipe diameter: 3” – optimized for smoother exhaust flow and a sharper tone

• Quad 3.5” tips – assertive styling and powerful acoustic impact

• Valvetronic system – toggle between quiet cruising and aggressive roar at the press of a button

• App & remote controlled (compatible with iOS & Android devices)

• Direct bolt-on fitment – no cutting, no welding, no stress

• Armytrix OBDII plug-and-play module – reduces install time by up to 30%

• CEL reduction system – catalytic converter + OPF fault-clearing tech helps prevent Check Engine Lights

• Supports LHD & RHD vehicles – global fitment flexibility

Fitment Notes:

• Fits both Sedan and Avant body styles

• Quad-tip muffler fits only with:

  • S4-style quad diffuser on non-S-line rear bumper

  • S4 rear diffuser on S-line rear bumper

• Exhaust system variations exist from factory

Wireless Valve Control via Armytrix OBDII Module:

Connect the included Armytrix OBDII Control Module to the vehicle’s OBDII port for seamless control of the valvetronic system using either the supplied remote or Armytrix mobile app. Choose your driving style with three customizable modes:

• ON – Valves open for maximum flow and sound

• OFF – Valves closed for quiet operation

• AUTO – Valve behavior automatically adjusts based on RPM and throttle input

Exclusive CEL Prevention System:

Armytrix’s proprietary fault-clearing technology minimizes the risk of Check Engine Lights associated with high-flow exhaust systems. Designed for compatibility with both stock and tuned setups, this system is ideal for drivers who want performance without compromise.

Fitment Overview:

• Vehicle: Audi A4 B9 (Sedan/Avant)

• Engine: 2.0 TFSI

• Drivetrain: 2WD (Non-Quattro)

• Years: 2016–Present

• Emission Type: Non-OPF

• Drive Configuration: Left-Hand Drive & Right-Hand Drive compatible