Check out the PipeGen Script: http://jokermartini.com/2012/12/03/pipes-gen/#.Ugo85JLbNsI You can do something a little more manual on your own by carefully managing the pivots, carefully placing verts in key spots or placing dummies at the beginning and end of your pipes, making it easy to snap to. Splines are also great…
^^^ That. I took the manual route. Seeing as i'd waste more time finding a script, Install it, learn how to use it, then make the pipe VS just making them :D Watch your initial cylinder side count though, I messed mine up a bit. So when rotated X amount, The sides don't line up. I used some stupid number like 15…