Rad i got stopped in my old saff in my own street at 3am because of the exhaust... 4" mongoose with no middle box. I was only pottering about at low revs ready to put it in the garage so wasnt that loud.
I got the usual patter... where you going, where you been etc... then "do you know its illegal to modify your exaust to be louder in any way" so i just played dumb and said thats the way its meant to be and they said fair enough. Tossers.