I am missing the stud/nut circled in the picture due to the stub breaking. Should I be worried about this one missing causing an exhaust leak? It is relatively near to the other one in the picture and is not located on the corner. As of right now I cannot notice any leaks from that area with the car on and reving to 1500 rpm.

Might be a dumb question but I really don't want to have to pull the turbos again.

Thanks for your advice.

 

That particular stud is located on the Turbo housing. Any stud that is missing on an FD exhaust system alone aill create a leak eventually. On that housing I would expect the same. You need to replace it at the best opprutunity.



LAter

 

toss a vacuum line into a bottle of ATF to make sure, i love smoke shows ha ha ha

 

You'll have an exhaust leak. Definitely not ideal, you can run it as-is but not recommended. In the future using a torch to heat it to red-hot before breaking loose the nut will help to avoid stud breakage.