Audi S6 and S7 Sportback
Milltek Sport invested in acquiring one of the first Audi S7 cars delivered in the UK to allow them to spend many months developing and honing their new performance exhaust systems for both the S7 and S6 (as they share the same platform) to achieve the perfect balance between improved power and an enhanced soundtrack.

The S6/S7 product range can be ordered with Milltek’s innovative new ‘ValveSonic’ rear silencer technology (See for more information), which integrates seamlessly with the factory ECU to open and close valves in the exhaust to give owners the chance to drive two cars in one, effectively. Quiet and refined for the commute to work or when bumbling around town but, with a more edgy, competition-inspired tone when the throttle is mashed into the carpet.

The system is based around 2.76mm (70mm) stainless steel pipework. Milltek Sport uses only the finest non-magnetic stainless steel in the construction of all of its systems, which carry a lifetime guarantee for the original owner.

As with most Milltek designs, an impressive array of options and configurations are available, in order to allow owners to either order systems piecemeal, to suit their budgets, or to allow a differing range of sound improvements and power increases to be effected.

At the top of the range is the HJS sports catalyst system, featuring primary catalyst bypass pipes for maximum flow and power, followed by a secondary High-Flow 200 cell sports catalyst which mounts under the vehicle floor. To achieve the best results with this option, Milltek’s engineers recommend the use of a software upgrade to truly obtain the maximum power gains. Cat-back systems are also available in either resonated or non-resonated formats, with either Polished, Black Velvet or Titanium quad 100mm GT100 trims.

The system is not only easy on the eye, but also hugely effective. Milltek’s own S7 demo vehicle, which runs performance aftermarket software and a full turbo-back exhaust system (including hi-flow sports cats), power has been raised from the factory’s 420bhp to more than 500bhp.

Whether you want look, sounds or performance, this latest Milltek system clearly ticks all of the boxes.