i was at a site for bishop sales ltd. they had a link that said bassani sideexhaust. went to bassani without using the link couldnt find it. tried to reload the bishop sales page couldnt go back.the link said 86-93 side exhaust.
It's probably just a link that advertises the Spintech version. I'm currently working on a side skirt that resembles those on the '93 Cobra, only slightly extended, that incorporates an opening for a 2.5" dia. oval exhaust tip. When it's finished, I'll post some pics. From there, all you need to do is have the piping bent the right way to fit it.
you can fabricate one. variety of mufflers, just get some with the inlet/outlet on the same side. i have seen several people use corvette mufflers and tips with some custom piping