> Open / minimal back pressure exhausts are done for the (minor in a non boosted car) performance gains. Not to scare people. Not sure what kind of performance

> Open / minimal back pressure exhausts are done for the (minor in a non boosted car) performance gains. Not to scare people. Not sure what kind of performance you are expecting in residential pedestrian streets. I've seen plenty of customs go WOT through a 25mph zone. No other reason to do that except piss people off.