MillTek Audi RS4 Active Valve Control (2019-2021) Interior NOTE: This harness bar is

NOTE: This harness bar is intended to facilitate the installation of harnesses for off-road performance driving events only

because of this it flows a lot better than the 981 GT4 muffler that was only designed for 385 HP

and has proven that the GT4 and Spyder have untapped potential when paired with our suite of performance components

Simple DIY slip-on installation

One-piece CNC mandrel bent tubing

MillTek Audi RS4 Active Valve Control (2019-2021) Interior NOTE: This harness bar isActive 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 apps, AVC brings total control of the exhaust to the drivers finger tips, via full CAN BUS integration with built in safety controls, Milltek's