Broke a turbo extension bolt off in the turbo =(

[Project240]

So yeah, in trying to remove an O2 housing--> turbo stud, part of it was seized to the turbo and I broke the bolt off. Didn't see it coming because it was turning fine, and then got tight all of a sudden. So, I'm running with 4 out of 5 bolts on the turbo extension right now. The broken/missing one is on the top, right by the wastegate discharge. When I get time I'll drill it out and replace it, I just don't have the time to take the exhaust and turbo off right now.

At any rate, the car sounds a bit like a WRX, especially when pulling away from a stop (BLAT BLAT BLAT). Also feels like it's lacking power and response (bogs a little in the midrange), and it'll occasionally buck under load in 1st or 2nd.

If I have a small exhaust leak from the turbo extension, could that be causing my problems? I wouldn't think it could cause such a noticeable difference, but maybe I'm wrong. I'm going to check my timing, fuel injector o-rings, IC piping and whatnot over the weekend and see if that helps; I was just wondering if a minute exhaust leak could make my car run like that.

[Hijacker]

Yes.

[Project240]

Ugh. This'll be the 3rd time I've pulled the exhaust and O2 housing in the last month =\