Yep don't know why people stick motorcycle race cans on scooters look well daft & sound carp IMHO.
That scorp isn't a race can as its got a baffle in and its designed for a scooter as the inlet is too small to get it onto a motorbike. I used to have one which I bought as it was lighter than the stock exhaust and also it was stanless steel so didn't rust like the standard mild steel one.
Photo of my old runner (aka the jogger) with a Zorstec Exhaust on.

That photo above makes me chuckle as the lock is round the exhaust, which can be removed in about 30 seconds by removing 1 bolt. Put the chain through the wheel otherwise it will get nicked.
Dave