*B2*, you will have louder cold starts primarily. Noticably louder. You'll also get a little whine, even with the L36 under accelleration unless you change your exhaust to drown that out.
I the summer, I actually open my garage door in the morning for the cold start (I simply go out that way to start the car now) so the sucking noise doesn't bounce off the garage door into the upstairs open bedroom windows across the street. A couple minutes later when the garage has absorbed the sound and the idle has settled, I load the dog and laptop up and head to work.
That'll be your biggest noise difference. Cold starts.