I ran the v 1 AP on my 2002 Wagon from 2003 to 2010. (Now has OS with the hybrid build) It was in for warranty issues I admitted that a number of Cobb products were installed. There was never a problem!
What I have noticed if folks having engine problems it is frequently from not tuning or bad tunes because they were cutting corners.
You can purchase from Cobb with confidence. In 2003 the AP was revolutionary. When I look at the larger variety of AP versions, it is clear these folks know what they are doing.
If you blow your engine, build a new one.
I also have 161K on my "glass transmission". If you treat it right, it works fine.