How bad is it to drive with just one of the downpipe bolts to the turbo missing?

 

I'm sure you'll have an exhaust leak... I think it's something that won't start off as being too bad, but will cause you a few problems later on.

 

i'd get it fix as soon as possible......

 

I'm sure he would too, if your going to post, post something worthy, don't just boost your post count with worthless misspelled nonsense.

The only downside to driving without the bolt would be an exhaust leak, you will probably smell the leak in your car, also I would not drive the car too hard or you could really heat up some stuff in the engine that should not be heated up. I understand if its your DD and you don't have time to fix it, otherwise, yes; you should take the time now, break it all down, and get it fixed.