Where can I get some nuts and studs that attach the exhaust to the turbo's?.... I hate going to the $tealership ...?

While I was taking off the nuts off of the exhaust flanges (mating to turbo's) I observed that the studs are backing out out of the turbos. The nuts are so heat damaged that they are welded/corroded to the studs. Before I started, I soaked them overnight with a heavy coat of 3-in-1 penetrant, but the nuts are cooked on.

Anyone else had this??....so frustrating....

 

I ended up going to the dealer, couldn't find them anywhere else, heres the info for future use :

 

not sure about studs,but I got my nuts and washer in Home Depot and they work great .