This is my first turbo install. I'm having some trouble mounting the new turbo to the ex. manifold. On the stock turbo the two bottom studs are threaded into the manifold and the two top studs are threaded into the flange on the turbo, but on this new turbo none of the holes in the flange are threaded. I hope this makes sense.

 

Use the bottom two studs on the stock manifold and use two new thru bolts for the upper two holes.

 

OK, thanks. The turbo didn't come with instructions but I found some on Industrial Injection's website, and it says to use two new bolts.