Shaun,
It's probably true about the carrera HEs being a limiting factor. But I'm going to try them for now. I already have the Dansk premuffler and M & K. Plus emissions testing is still a factor for me, sadly. With this setup, I can swap in the stock cat in 30 mins or so every two years.
I have it on good authority that SSIs are too small (1.5" primaries, carrera HEs = 1.675" primaries with with a big difference in exhaust path length L/R).
So basically, that leaves me only the really expensive options as I need to keep my heat. Even though I am in Seattle, it has been in the upper 20s the last few mornings and I like seeing out my windshield as I drive.
My need for heat leaves me only a few options I am aware of. From a cost perspective, at this point I am looking at getting a set of 993 HEs and flipping the flanges. Then I'd get a a flowmaster or dynomax, or possibly the B & B stainless setup. But I hear a lot of bad things about their mufflers.
Probably whatever setup I end up using for the non-emissions times I'll end up having to get pipes fabbed for a muffler.
On second thought... anyone know where I can rent a mandrel bender?