turbo question
 

hey guys i have 2 to4e turbos. both have t4 flanges and look to have the same size exhaust wheel. 1 to4e has a 60 ar comp housing and a 81 open valute exhaust housing. the other one is a 50 ar comp housing with a 1.00ar divided exhaust. so my question is can i swap exhaust housing. any help will be great.

i took the two turbos apart and the 1.00 exhaust housing was just a little small to fit on the other turbo. can i mill the housing or just buy a new housing.

does anyone atleast know who i should talk to about the turbos