yeah I'm with you Pete, what a crock - there is no will on the part of the pleece to do anything about this blight on humanity. They should be pulled over, booked for Undue Noise, and sent for roadworthy check for noise
so they will go home, put the standard mufflers on, do the test, pass, go home, put the straight through pipes on, and go for a ride
and then Mr Plod should book them again (and again) until they get the god damn message - I live 6km from a major road (betwixt Boonah and Ipswich) and we can hear these dills as plain as day every weekend...
there endeth the rant (for the time being)
BP