t3 turbo but the o2 housing will not fit on the manifold

I have a t3 turbo but the o2 housing will not fit on the turbo manifold. How do I fix this problem?

If i get the origional o2 housing for my car is it a for sure thing it will fit on the t3 i have? The origional turbo wich i dont have is the t26 for an mk3 supra. My turbo is a t3 .42 turbo with .48 housing. What is my best option?

Sorry, but your maintenance related post was on a trader's thread...I've moved it to the appropriate Supra forum.