Holset questions..

[Wuthapn]

Ok so I have a RB25 stroked to a 2.7 I made 440hp and 401tq... It has a masterpower t72 and has horrible spool time... I've been readin a lot about te holset HX35 and HX40 and I was wondering what all was needed to put this on my car other than the turbo... Do I need to replace the exhaust housing if so, with what and where do you get it from? I can't seem to find any information on this... I already have vband dp and t4 exhaust manifold... Any help would be greatly appreciated

[chad b.]

////buy a turbo made for a gasoline engine