Not sure if this is just an aftermarket end can or a full system?

just an aftermarket end can by the looks of it pal

Ah ok, cheers! Wasn't sure as it just looks so different to the other system I have.

looks like CRM is on the money. You can see the stock clamps joining the rear section to the front too, these are most often not used on aftermaket systems, even ones that use the stock front headers.

Perhaps there is something aftermarket about your other system... any pictures?

Now I've got it off of the bike it does look just like the other, in fact I'm not convinced that the Exhaust isn't just a standard with a Scorpion Sticker put on there!

That slip on can looks like its aluminium - so not standard

Standard can is welded, not riveted (that one is riveted). I am pretty sure the standard is also aluminium though.