I'm running the ABT chip, supposedly. But coupled to a 4.2, all running the electronics for the 3.6.
Sourced from a fella in the US.

Motorway cruising gets 27/28ish mpg. No idea of actual power, but it does go well.

85 WR quattro
90 V8 Silver, 91 V8 Black, 93 V8 Lago
93 100e quattro V6. Titan, i think