I don't think their universal mufflers are either mirror finish, nor straight through. It looks like the diameters offered are ID, but you might want to get something a tad larger than stock size for a 944 t just to be safe.
There are a few dealers I've personally been to around here, I can try to dig that up if you want, but you know I live in Raleigh.
I was considering getting one of the race series, using the tip provided, after choosing a model that's the right dimentions. I seem to remember several that would work. I'll try to look into this, and get back to you (extremely busy right now), btw are you coming to the last auto-x of the season with THSCC? It'll be my first in a while (<75 days for license).
Ahmet
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