The whistle was the ARV. I opened it a bit for the pic. The crack goes all the way into the compressor pressure/intake area.
Sooooo, now I need either a new turbo or a replacement KKK compressor section. Does anyone happen to have a KKK compressor section for sale? Can the compressor section be replaced without removing the turbo? That would be quite nice if it could be.
-Tad