They placed the old exhaust in the back
First cold start at the dealer and there was lots of popping but when driving I don't hear any popping noise in sport mode. When I left off the gas and come to a slow stop there is like faint rattling sound coming from the exhaust.
Maybe after I put more miles on the exhaust? Upon first inspection I noticed that the right exhaust tip stuck out more than the left side so I had two tech readjust it. Now it sits perfectly.
So far I love everything about the exhaust sound. My X5 sounds so exotic lol. I'm happy that the passenger side is always opened too.