This product is perfect for Audi enthusiasts who want to enhance the performance and sound of their 2009 - 2016 Audi A4, A5, allroad, or 2011 - 2012 Q5. Whether you're cruising on the highway or taking your car to the track, this front resonator delete pipe will make your driving experience more exciting. It's made of 304 stainless steel tubing with a 3 - inch diameter, offering great strength and durability. Installation is easy, so you can quickly upgrade your vehicle.