they dont.... i asked a friend who has a custom chopper, he's owner of an exhaust shop who even ddid some work for Jessy James in Monster garage, told me all bout his run ins with the law. Said once he was driving around costa mesa and a cop pulled him over. made a big deal about his bike, and his helmet, almost had it towed away when he talked back to the cop, the cop was a punk like that. Saleen only sounds loud when its reving above 5500 RPM, for test they have you rev to about 3000-4000 rpm, they got my homi when he installed his magnaflowz...105 dbz @ 4000 rpm, his stock setup made i think around 90 dbz, but that was 3 years ago, maybe they changed the rev ratings. A new law (27150.2 VC) does not require police to use a sound meter to test for excessive noise. A citation is now based upon the officers judgment. just FYI
