Originally Posted by RobBeck
The word is that those are increased in ID at the inlet and outlet. I believe the inlet ID was specified and was quite and increase, the outlet ID (at the turbo inlet) was specified to be increased as well but a specific measurement was not provided. If that ID was increased sufficiently, then would be a great part to buy. If not, then total waste. From appearance alone it appears there was some significant increase so all should be well.
I mixed up In and Out in my description, sorry on my phone. The Inlet seems fine, the outlet is what makes them pointless, IMO. Again, WHY not just make the ID slip fit the stock gasket on the snout, WHY neck it down at at all? I'm just trying to understand the thinking there, if you are going to cast such a nice looking piece, make it flow as much as possible