Possible to remove passenger side shorty header with motor in car?

It sounds like I have a massive exhaust leak from my passenger side header (at least I hope to God that's what it is ) but I can't tell at all where it is coming from. I think one of the primary tubes might have a crack. The headers on the car are Flowtech shorties, I thought I read that shorties are possible to remove with the motor in-car, whereas full length and longtubes are pretty much impossible. Also, my hands are huge.

How much is this going to suck?