"Could you further explain your last message ie. " Use a left hand cobalt twist drill bit, and a locking collar type stud remover"."

As to the bits, they are available at well stock hardware places, "screw" shops, speciality tool joints. Same for the cool stud removers. You may need a right angle drill. Set the drill on "R" and start drilling. With "loose" studs this alone may cause it to back out. If not, "drill" into your hole with the stud remover crank the collar nut down and use a wrench to back the stud out.

"One other question, My very last exhaust stud was a repair that stripped out, It looks like it has been drilled to 10mm, what can I do? The threads are somewhat there, should I try and retap it?"

Give retapping a shot. The studs originally are 8mm, but a 10mm will work and be stronger. If the 10mm is hosed up, I know there are "step down" studs in SAE sizes (dunno if metric sizes are available). These have a larger "butt" thread than the exposed thread. I think people have gone 12 mm but you'll need to open the manifold holes up.......

"I plan on removing all of the studs retapping and replacing with high quality studs and copper nuts."

Copper nuts? Hmmm unique idea....please tell ME more.

"Also since we are on the subject what is the best way to mount my new turbo to my manifold? I have heard that the volvo safety clips are no longer availible. What should I use?"

Where did you hear you can't buy the locking plates? I hadn't heard this.