What cost for labot to install SSI's?
 

The studs look rusted out so I do not want to risk breaking them off replacing the exchangers. What should I expect to pay a Porsche mechanic do do the work, including replacing the oil lines?

$200-400. If the studs break, weather you do it or he does, it will cost more obviously. Also, factor in an oil change and you're closer to $500. They won't like the fact that you're supplying parts and that they won't get to make any margin on them either.

John

About 4-5 hours labor with the installation of redirected oil line and muffler. Possibly more if the studs are a problem.

I don't know what the smog laws are where you live, but I have heard that some shops will not install SSI's on street cars, becasue they are not smog legal in all 50 states.