[Biturbos4] Bi-turbo newbie upgrades?

[Dale at TheMcCormacks.org]

Hi folks,
I've been a member of other Audifans qlists, but am new to your Bi-Turbo 
one.  In reading the digest for the past several weeks I haven't seen 
much dialog on performance tuning, just GP navi CDs and other similar, 
but rather non-technical topics. 

 I'm planning to acquire an 01 6-speed Allroad later this year so am 
"listening" for topics of interest.  In particular, any  cuddos or 
brickbats about available chips would be helpful.

RideWell,

Dale