You know its real fuckin easy not to get bothered by them. Take the huge 6" slant carbon fiber muffler off. Put a vibrant black stealth muffler on or RSR system powdercoated black.

Then do something amazing, DO THE FUCKIN SPEED LIMIT!

That simple. If you driving and worried about getting pulled over you doing something wrong, don't. Grow up and realize there are families with children in the car as your doing 80mph. A lot of them mind you with woman who cant drive and will cut in front of you.
Ever notice the unmarked aren't out at night. Only during rush hours and mid evening. When the dumb fuckers are out. Fuck around on 495 at night not on the local streets.

They won't bother you trust me i haven't got a ticket in five years = hella cheap insurance.