Availability:

Not everything on our website is in stock. If you need a part desperately, please contact us first to confirm availability before placing your order.



This module is designed to integrate with the existing driver select modes to operate the valves, once the module is installed it will default valve behaviour to be as follows


Comfort / Eco Mode = Closed up to 5k RPM
Auto Mode = closed up to 3k RPM
Dynamic = Open all the time
Cold Start = Valve closed (usually open with stock exhaust)
4 Cylinder mode = Valve closed


The module also offers an override to open and close valves on demand regardless of drive mode by pressing the ESP button twice is quick succession.

* All values are pre-set into the module and cannot be altered.*

Active Valve Control (AVC) is available to support both vehicles equipped with factory valves on the exhaust as well as a growing range of upgrades Milltek Sport offers to have performance exhaust systems with Valve Control. Also with optional App control on selected models, via iPhone or Android smartphone app’s, AVC brings total control of the exhaust to the drivers finger tips, via full CAN BUS integration with built in safety controls, Milltek’s AVC enables the driver to choose when the valves open and close to tune the sound and volume of the exhaust.

Supplier Product Title
Active Valve Control System (Audi S4/S5/SQ5)

Technical Specifications

Supplier SKU: SSXAU677
Supplier: Milltek Sport
Product type: Active Control Units
Category: Accessories
Barcode / EAN: 5056214703591
Source price: £620.96
Inventory treatment: untracked
Source handle: active-valve-control-system-audi-s4s5sq5-ssxau677

Vehicle Fitment

Audi - S4 - B9 - 3.0 Turbo|V6 - Saloon|Sedan|Avant - 2016 to Later
Audi - S4 - B9 - 3.0 Turbo|V6 - Saloon|Sedan|Avant - 2016 to Later
Audi - S4 - B9 - 3.0 Turbo|V6 - Saloon|Sedan|Avant - 2016 to Later
Audi - S4 - B9 - 3.0 Turbo|V6 - Saloon|Sedan|Avant - 2016 to Later
Audi - S5 - B9 - 3.0 V6 - Coupe - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Coupe - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Coupe - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Coupe - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Coupe - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Coupe - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Sportback - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Sportback - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Sportback - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Sportback - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Sportback - 2017 to Later
Audi - S5 - B9 - 3.0 V6 - Sportback - 2017 to Later
Audi - SQ5 - 3.0TFSI|V6 - 2017 to Later