I can't understand why anyone would want a huge housing on a small turbo?
Was there ever a better turbo than a 44 with a Garrett .63 housing for the street?
Plain and simple, the reason the Precision housing makes more HP is that they are bigger, but you pay for it in sluggish spool-up, unless you're willing to throw stall at it. The Garrett housing dried up. Otherwise, we'd still be using them, because they hit real nice on the street.