Sporty cat-back exhaust system from Milltek Sport dedicated to the Audi RS6/RS7 C7 4.0 TFSI. The entire system is made of stainless steel and connected to the tips in the rear bumper. The exhaust is available in a louder Non-resonated version and a quieter Resonated version. The system is compatible with the stock downpipe. All versions feature tailpipes equipped with valves controlled from the onboard computer.