I would say that the turbos of the Audi might be to small , and you'll have no top end .
those turbos are running on 2.7l mottor . Now I'm assuming that you want to put this on your 4.0l .
In DSM world there is this turbo that comes stock on 95-99 Eclipse . it's called T-25 ( it is and it's not Garret turbo , the exhoust housing is different ) .
So just by thinking about it that turbo drops of making power at likr 4500 -5000 rpms on 2.0l , Now two of them on a 4.0l . Would look like two 2.0l mottors
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Flanges for the manifold for the turbo are cheap ( Road Race Engening ) .
You can go a next step and not to wory about $50 used turbos and spending money on rebuild of them , and get an older Mitsu turbo called 14B ( tdo5h ) those go for about $100 and rebuild kits for $100 .
Also the cheap way to get IC's is also from DSM. or Supra Side mount IC's. But the SUpra IC had plastick endtanks and I don't like that . The DSM ( Talon , Eclipse , Laser ) they start from 1990 to 1994 is one size , then they change a bit in 95 . Those also you can get got like $50 each .
IC pipes , JCWhitney that's where I got mine .
Here is a page of the pipes cut to size and powdercoated and my install on my RIP car now
http://tsiart02.tripod.com/fmic.htm . I know it dose not look like much , but I was on a budget
Oh the pipes were only $8 each mandrel bend
