After a few pictures and a couple of e-mails to AviPro they are sending me some new pieces to take care of the misfit exhaust tunnel. I'm not sure which piece(s) are not made correctly but they're sending me a new tunnel, rear bulkhead, and firewall flange. That should take care of the situation regardless of which one was made wrong. Tonlght I temporarily installed the instrument panel in preparation for installing the boot cowl. I need some pictures of avionics to glue on the instrument panel blank.:-)