Audi A6 Active Sound Control Model_FR 1.2 TSI (2015-17) The M4 development has been

The M4 development has been based around a valved turbo back exhaust with the addition of a primary de-cat (catalyst bypass) exhaust upgrade

T304 Stainless steel cage support structure

The new part removes the central silencer/resonator found in the O/E system allowing for smoother gas flow rates for improved power delivery and a noticeably enhanced exhaust tone

In many cases we see the factory fuel pump begin to suffer from pressure loss

Audi A6 Active Sound Control Model_FR 1.2 TSI (2015-17) The M4 development has beenActive Sound (ASU) from Milltek Sport is an innovative solution to enable a user controllable exhaust sound to be made on vehicles that traditionally lack the sound and tone that owners desire; suitable for a wide range of vehicles, the growing range includes Hybrids, EV and diesels. Including 11 selectable sound files, volume, pitch and tone adjustment with user configurable profiles all controlled via Millteks own iPhone or Android app. All our