Got the afe they say 9hp 32fpt
http://afepower.com/catalog/49-46404/NPA.pdf
Been on car about 3 days now I can hear almost no difference in car. Almost meaning windows down radio off I hear a louder flow of air going out it but not a change in tone or louder in any noticeable way. I have had many fixed up cars and just to name some exhausts I have owned in the past trust, apexi, RSR, thermal. This is my 1st vw so was very surprised at the idea it was so minor. My friend on outside said he heard a difference but nothing huge more of a raspy noise right before shift.
I miss my older turbo cars and the noise of the turbo wine and flutter, blowoff and wastegate dump.
Power wise I guess some improvement. And MPG I do seem to see something positive but to early to tell. Hope that helped. Also install was simple just drove front tires on ramp.
I am not to tech so no pics. It got a nice double wall tip not to large 3.5" if you want smaller cut back where it is 2.5".