Racintweek

if you have 2 td04's then that would be better.

go look at the stock manifolds, they extend about 2-3" past the end of teh engine and the downpipes (which are welded to teh cats) coem up from the bottm of the firewall. put adapters for a td04 on the stock manifolds. that would be the way to do it with the least amount of modification. but then your oil retun lines would be kinda long. it can be done though, thats how the 2.7tt has them setup.
then you could either build your own downpies or modify your stock ones by shotening the end that comes into the engine bay and welding on the proper turbine outlet flange for a td04

once you figure out the turbo place ment, then you have to worry about your IC setup. the 2.7tt uses 2 SMIC that are mounted in teh fenderwells. then there is a y-pipe that goes into the t-body. the only catch to the V6 passat is that it has a diff intake mani than the 2.7tt,the t-body inlet faces the firewall. either you can make the y-pipe flat or pray to whatever god you believe in that some one is selliong a 2.7tt intake mani