Possible boot boost leak.
 

I currently have my Y pipe out and did some minor fileing to ensure a good seal especially at the orange engine boots. Notice the surface protrusions(about 1mm-2mm). About 5 minutes with a hand file and BINGO!...nice smooth surface
for a good seal. I'm wondering if the pipe/turbo mating area leaks(metal to metal) and could use some pipe compound?

There is supposed to be a rubber o-ring between the turbo and the manifold. Was yours missing? It should be in the turbo outlet flange.

OOpps! your right Cookie...forgot about that ring. Maybe some grease on it for a really good seal.
Nut

Yep...a little vaseline does the trick on o-rings.

Spray the inside of your boots with a little hair spray before you reinstall and you'll eliminate those popping off too.

Great info ...thanks!
Nut