Which Fister For 997.2 C2S?

[jumiss]

Hey Guys, I've heard about the different variation of Fister exhaust mods, ie 1, 2 & maybe 3.

If I remember from a couple of years ago, was it the Fister 2 exhaust that had the best overall sound on my model?

I seem to remember that, but wanted to hear everyone's take on it and if I had that correct. Thanks!