Good point....Haven't done that because after I did a mock up of that one turbo I tore down the Z1 units to clean and re-machine the housings. Though I'm sure I'll have to clearance the other one as well. I remember having the same issue with the SZ kits a year ago not bolting up as well. I know it isn't the right turbo for the side as shown but the housing just rotates into place once its bolt in...the housing overall is still too big and needs to be cleared. but none the less I'm going to find an alternative to clearing the manifold than grinding on them. Too much to risk in that area in all honesty.
I'll post up images once I get to that point with the customers build.