Got a m5 rear bumper installed about 3 weeks ago, just got around to getting exhaust done, drove to houston to have it installed. I deleted the resonator, replaced it with a muffler and ran pipes back. I gotta take it back into the shop again, I need to add 2 or 4 resonators. Its a bit too loud for my liking, inside. The exhaust sounds very very deep though. Need to raise the left side a tad as well.
Here are some pics.

 

that def set the back end of the car off!

 

looks very nice! you seem to be doing everything right. what exhaust do you have?

 

It looks ok, the tips on the drivers side look off though.

 

sweet

 

Looks like a M5, I like

 

looks pretty good...

 

Looks good and so does the new bumper.

 

that bumper looks MUCH better than the OEM bumper...those exhaust tips are sick...is it an axle back or cat back and which brand?