New Turbo Questions - Kit?

[scheides]

I'd go for the Hahn. I had that on my 1G and it rocked. That turbo was indestructible, I recently saw the car and it was still on it!

[ExTREME]

Cant get on the DSMlink forums..

As for the Hahn, I've noticed there are 2 different 20G's on there for the 89-94. One saying "no external wastegate required" and the other did not include that information. So, should I go external? Also, on the one that said no "Ext. WG required" it stated for 'HighFlow' manifolds. I recently purchased the FP Race Exh. Mani. Would that be considered high flow?