I was looking at the GOAPR website and saw they had a chip for the 2002 A6 4.2. They claim it makes 340 HP and 302 lb-ft of torque. I called them and they reiterated their claim. Anyone have one of these chips installed?
What were the results? Any downside? Did mpg drop drastically?

http://www.goapr.com/Audi/products/e...ade_a627t.html

 

An extra 15% out of a NA engine seems a bit optomistic. From what I have read the best you can typically expect from a NA engine is about 7.5%. But maybe someone on the forum has some first hand experience with a Dyno run on the 4.2.