My buddy's got an A4 and wants to know if there is a 4 wheel dyno around my area, Pittsburgh PA. I know it's a long shot asking here, but I thought I might as well give it a try.

 

Pretty much the only 4-wheel dyno is the Dynapak.

Call these guys:

http://www.dynapackusa.com/

Ask them if they have someone who bought a dyno from them in your area!

 

I thought that when most AWD cars were dynoed, they disconnected the drive shaft that drives the front diff.

I know that around here, if you have AWD, when you go to emissions, they just test your car at idle because they don't have / make a dyno for AWD.