I'm at the fork in the road, I'm going to use my current turbo on top and I'm not sure which turbo would be better. A HT3B or a S400 variation. I'm sure each has their own plumbing challenges. I know the HT3B/WH1C combo is pretty solid, but I want some opinions on the S400 variation too.
Thanks

 

I believe the comp wheels and exhaust housing are pretty well the same size if you didn't already know that

 

I'm interested too, I want to start making my own setup here sometime soon...