Hello I have a Audi A4 3.0 Quattro Cabriolet. I currently have a stock exhaust system on my car but I am looking to have a little fun as well as improve the sound of my car,I was wondering if anyone has done anything to their exhaust to make it sound either deeper, throatier, louder, etc... Anything that makes it sound more like a race car or exotic than before. If so please tell me what Id be willing to do it!