pipe is the same diameter . the exhaust shop just cut my old midpipe off at the resonator and welded the new one on.
It's loud with the resonator so i would recommend leaving it on unless you want alot of Drone inside the car.
As far as hangers/isolaters any exhaust shop should have what you need. Napa might even carry them as well. The exhaust shop that did mine didn't even charge me for the little parts. i just brought in the midpipe, mufflers, and tips, they did the rest.
**edit** i'll try to get my car up on a hoist this afternoon and take some pictures for ya. no guarantees the service manager is sometimes hard to convince. wednesdays are our shop days here![]()