If you intend to keep the bus I would recommend going stainless.
I wanted to keep my heat exchangers and did not want to have to remove the muffler every time the valve clearances needed setting so went for system 2 on here http://www.vwspeedshop.com/home.php?cat=497" onclick="window.open(this.href);return false;
It clears the engine support bar, is well made and was easy to fit.
As for the muffler, I find the aftermarket ones too noisy and ended up making my own out of stainless.
Cheers fella's
I've given turbo thomas a ring, £180 delivered, which i thought was pretty good
Only trouble is, 4 week's before they can get one to me :shock: