[the blue potato]

iirc Blue potato has one

Thank you for the tip, I found some good photos on his site:

http://thebluepotato.net/exteriorframes.htm

http://thebluepotato.net/engineframes.htm

And Phatmiata is right, he changed to the pitcrew.

Who has that Zoom exhaust now?

One of the local guys has it - sold it to him couple years back. If you are interested, PM me and I will give you his email to see if he wants to sell it.