TopgunZ

Sasha, No, Im talking about the shroud. There are solid ones(most common), drilled ones and ported ones. From my research it reduces or eliminates surge and also opens up mid-range. And as a makes the turbo sound more aggresive.

Here is a drilled one.



And ported.




Ok. So after knee-jerking a response I looked at your included link to the 6766. That is a drilled inlet. The 6266 is not. it is a solid design.

http://www.precisionturbo.net/Street...A6266-CEA®/239

Vs.

http://www.precisionturbo.net/Street...T6766-CEA®/480

So I guess im wondering if its wise to do this to the 6266? I know they offer it solid, drilled, or ported on the turbo I currently have, the GT35R.