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Ur-Q EM



<I have two questions. One, anybody have any suggestions I can use to
<limit the posibility of cracking the new one 

Yes, don't install it and order the two piece.  Every Audi we own with the
on-piece has cracked.

<and two, before I install it would it be worth having it extrude honned?

Problem is that you will have about the same amount of money in the
manifold as you would if you'd have gotten the two piece and as a bonus. .
.it will crack again.
You will feel big gains in power with the two-piece.

Dave