Sport exhaust system type Cat-back by Armytrix dedicated to Audi RS4 B8 4.2 FSI Avant.The entire system is made of T304 stainless steel alloy. The system uses factory exhaust tips.
No modifications are required for the installation of this system; the exhaust is perfectly fitted to the car.
Armytrix exhaust systems are the perfect solution for those seeking uncompromising acoustic experiences.
Regardless of whether there are inline 4 cylinders or 8 cylinders in a V configuration under the hood, this exhaust will bring out the most powerful engine sound.
Thanks to the use of a remote-controlled valve system, the car does not lose its practicality and can change its character depending on the driver's mood.
The valve control is done via the Audi Drive Select System. 
