mike check your pms.
HKS has had these type of housings out for a long time now. They just cost HKS prices.
I responded to the PMs. BTW…Tial is using the vband style used on their 44mm wastegates and not their BOVs for this. They do not use an o-ring or gasket so as long as you don’t bang up the flange and they’re mated properly you should have a lifetime seal assuming the clamp doesn’t get loose.
thanks for the info 
im adding this to my list for next winter
i am NOT looking forward to dealing with sealing up my T4 flange this winter
i heard:
28R - $250
30R - $275
35R - $300
42R - $350
Pretty cool, sheps been using an HKS turbine housing for some time (although its stamped FP’s logo i believe it was an HKS unit). On larger frame turbos id probly look into some bracing tho. Seems like it could be alot of stress for the vband clamp.