The exhaust on the Bandit is a Campbell Custom exhaust called a Sidewinder, made in Kent.
They will only make an exhaust for you if you phone or email them and only take your hard earned when its made and ready for dispatch. Not cheap though.

The CB-1 has a few things wrong with it, the paint is fading, in fact could do with a total respray. The engine paint is doing the usual thing of flaking away and it could do with a service and the steering dosent seem to go far enough on left lock to use the steering lock, the left hand mirror has snapped off the mount.
Other than that its all there and the girl who uses it says it seems to go alright and keeps up reasonably well with her neighbours SV1000S (I suspect he is holding back) That is no disrespect to the -1.
Close up pic of sidewinder attached.