e63 biturbo exhaust burble?
Looking to to buy a 2012/3 e63 5.5 bi turbo, planning to do stage 2 mods and some exhaust mods. I've been looking at videos and not many of these engines can burble or pop and bang. Can someone confirm if its possible or if its not possible with these engines, are they the m157 engine 525bhp RWD




Is there a formal way to word it or request this feature be added? My previous vehicle had it and miss the snap, crackle and pop.


