Yea it is deep, I can feel it on my feet, I don't think is going to change I feel like there is an exhaust leek or something. I was looking at the muffler and it is very close to the body of the car almost touching it, does this have to do with anything. shit in my car starts to vibrate man. if is like this is coming off next week and selling it. Looking for a c36 amg muffler