Thats the same intake manifold I have. It has a large plenum with tapered velocity stacks. The runners are a bit longer then stock. Sacrifices a little low end to gain BIG top end. I run the same turbo but in a t3 version with a .82 a/r (gt3082r) which is slightly larger then the 3065 (.70 a/r), and it still spools pretty quick with that manifold. Low speed driveability is still good.
Stock intake manfold chokes out in the 7k rpm range even with a nice set of cams, but this intake manifold really shines in anything over 8000 rpms.