on the subject of TS downpipes - AVO has a setup that's a cast upper section and a tube lower section. This way they can simply have the cast section in whatever country uses whatever pipe.
If you ask REALLY nice you can get them to bring in the cast upper sections to go with the pipe section. I did this a long long time ago for my TS setup, and they were very nice to work with on it.
I'm on a horse.