Do I want complainers for neighbors?
I really can't see it being an issue. I won't tune my car in my garage, rev it endlessly in my driveway, or leave it running for extended periods.
My neighbors have zero leg to stand on, with their straight-piped Harleys, pick-ups and Mustangs... neither do I, for that matter, with my straight-piped Volkswagen...
I was more inquiring about those that already have the RM exhaust and the reaction to it from those around them... I'm just trying to get an idea of how loud the system actually is, hard to gauge from videos on YouTube, and it seems to have a higher octave register than some vehicles.