Armytrix Audi S4 B9 Non-OPF 2017- Valvetronic System Inc Wireless Remote Control

Unleash the power, tone, and sophistication of your Audi S4 B9 with the Armytrix Valvetronic Exhaust System—a premium performance upgrade designed exclusively for the 3.0L V6 Turbo Non-OPF models. Engineered for drivers who demand both aggression and refinement, this system offers free-flowing performance, a commanding quad-tip presence, and full control over your exhaust sound with the touch of a button.

Crafted with dual 2.5” mandrel-bent stainless steel main pipes and finished with quad 3.5” tips, this system is built for optimal flow, durability, and aesthetics. With its smart, app-controlled valvetronic technology, you can toggle between stealth and sport modes in real time—perfect for both spirited driving and low-profile cruising.

Note: This system does not fit OPF-equipped models or vehicles with the factory Big Roof panoramic system. VIN verification is required prior to ordering to confirm compatibility.

Key Features:

• Designed for Audi S4 B9 3.0 V6 Turbo (2017–Present, Non-OPF only)

• Dual 2.5” main pipes – tuned for performance, sound, and flow

• Quad 3.5” tips – bold, aggressive rear styling

• Valvetronic system – app and remote controlled (iOS & Android)

• Direct bolt-on fitment – no cutting or welding required

• OBDII plug-n-play module – 30% faster install time vs. wired systems

• Built-in fault-clearing mechanism – reduces CEL risk from cat/OPF changes

• Compatible with LHD and RHD models

Fitment Restrictions:

• Does NOT fit OPF models

• Does NOT fit vehicles with Big Roof system (Panoramic Roof)

• Use VIN to confirm fitment before purchase

Wireless Valve Control via OBDII Module:

Armytrix OBDII Control Module is REQUIRED

Plug-and-play installation through the factory OBDII port. Control valve behavior via:

• ON – Valves fully open for maximum performance and volume

• OFF – Valves closed for subdued, refined driving

• AUTO – Automatically adjusts based on RPM and throttle input

Control your sound via the included remote key fob or the Armytrix app.

Exclusive Check Engine Light Prevention System:

Equipped with Armytrix’s proprietary catalytic converter & OPF-related fault code clearing system, this setup is ideal for modified cars—helping to minimise the risk of CELs when running high-flow or de-catted exhaust components.

Fitment:

• Vehicle: Audi S4 B9 Sedan & Avant

• Engine: 3.0L V6 Turbo

• Years: 2017–Present

• Compatibility: Non-OPF models only

• Drive Config: Left-Hand Drive & Right-Hand Drive