Hello, can someone hazard a guess what this guy has had done to his exhaust system to make it soundlike this? Ok its on an ML63 but there are probably 100x as many people reading posts on this site as there are on the ML63 forum so i thought i would give it a go:
http://www.youtube.com/watch?v=L862uS--myQ&NR=1

 

Headers, Resonator/Cat delete?

 

Glass packs!