[Biturbos4] Replacement turbos

[Bill Coleman]

Robin has an interesting point.  I haven't checked out all the
aftermarket suppliers, but from what I remember of those I
have seen a stage 3 upgrade sounds like it might be cheaper
than just having the turbos replaced by the dealership.

Hmm, a reasone to look forward to turbo failure?  Nah...
At least until my kid graduates from U Mich and those nasty
tuition bills go away!

Bill