Just bought a V8 TSI 2 months ago as a project vehicle.
Seems to be as capable as the rest of the Jeep family (4LO) as a stock vehicle.
But i am finding out alot of stuff needs 'upgrading' for serious offroading.
The 249 transfer case is the real pig...it messes up the whole drivetrain...but i guess fulltime 4wheel drive has it's place on the road and on the car.
Mods so far -
Full Mopar skids
Rock-it diff guards (F&R)
Flowmaster 50 muffler
Immanent mods -
ORGS super nerfs - Dec 01
RE 4.5" - Jan 02
Tom woods R drive shaft - Jan 02
More 'distant' mods -
Trailready (F&R) bumpers
33" tires on 15" rims
F&R HD drive shafts
Hope this answers a few of your questions.