1993 945T 178,000 miles. One of three studs were Turbo unit connects to downpipe is broken off and there is small exhaust leak at connection. Couple of questions.

1. Does the turbo need to be removed from the car to replace this stud or is there (as it appears) an adapter holding the stud between the actual turbo unit and the downpipe which can be removed and fixed?

2. Is this a job where the downpipe can be removed and the stud on the adapter/turbo replaced without removing the turbo from the car?

3. If the turbo does need to be removed is this a time to pre-emptively replace the turbo (which is original but is working fine) or is the labor to R/R the turbo such a small small part of the overall cost of turbo replacement that replacing a working turbo just because it is old and off the car doesn't make economic sense?

I will not be doing this job myself but would like a little knowledge before talking to the shop.

Thanks for any information Brickboard members can give

Howard