5000 & 200 turbo hoses & perf. mods

[Brooks Ellis <brooks@frii.com>]

For as long as I have been on this list, it seems that most of the mods to
increase hp/torque have focused soley on boost pressure.
I was wondering, if any listers have found some aftermarket (or other parts
from later model turbo cars) intercoolers, or intercooler tubes, intake,
exhaust manifolds.. downpipes, and of course, exhaust.

I am about to buy a '89 or '90 200TQ, and am looking into the best mods to
put on my new baby. Minor pre-tuning things : K&N and a boost gauge. First
of all, I'm looking into a more efficient intercooler, and the tube that
connects the intercooler to the intake manifold. Then, I'm considering a
2.5" downpipe, and larger (not louder!!) exhaust...Say 2.5 or 3". 

Then, if I'm not satisfied, I'll think about boost mods. 

Does anyone have recommendations, and/or BTDT experiences? I'm interested
in knowing how each piece has served you.

TIA!

brooks