Your neighbors must love you!
I'm lucky enough to have some awesome neighbors who don't mind my cars (which aren't loud at all) and my friend's cars that come over (one guy has dumped straight pipes)!
I haven't had any complaints yet. I just try to make sure that I am not loud at the wrong time of the day. Of course the lady right acroos the street is a nurse that works 3rd shift at the hospital. I think her bedroom is on the back side of their house though. Hopefully I won't make any enemies. I guess I could cut down my tailpipes and get the mufflers back on before I bleed the system.
But I do want to hear it open header just a little bit.