inside w/ windows open
this is before became the ONE&ONLY e90 ERICSSON exhaust.
that means, straight bolt-on which it's shown above at the top of the thread.
Then it was redone at amuse ericsson to feed my needs!!:-)
black part where I marked was eliminated and the red line is where it has a H pipe.
I will try to post new video of the redone exhaust but I don't have time, give me couple of weeks and I will post it up!!
e90 m3 melbourne red metallic, "One and Only" e90 sedan Amuse Ericsson full exhaust(new model)with custom spec, Afe intake with stock box,piano black trim, blackline tail, HRE P40 9x19,10.5x19