Invidia Q300 Cat-Back Exhaust System Volkwagen Golf R 2015+If you are looking for a great way to squeeze a little extra performance from your vehicle, then you will be pleased with the Invidia Q300 Cat Back Exhaust System. There are several performance attributes that makes this an excellent upgrade. This exhaust system has been made from 304 stainless steel and features 3" piping. The exhaust has also been designed with minimal bends to reduce the amount of turbulence during acceleration, allowing the engine