3 piece manifold
#1
#2
#3
Shrinkage of the stock one is the main reason people upgrade, but they do help a little with spoolup and egt's.
#5
There is really no good one brand of the 3 piece manifolds as they are ALL known to crack somewhere.Its one of those deals you just pick your flavor and run it until it cracks and then replace it.I am on my second ATS manifold as the back 3 cylinders cracked inside the center section and fell apart when we redid my headgasket a while back.
#10
High Tech Turbo
don't know if they make a 2nd gen one
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I'm very happy with my PDI manifold
don't know if they make a 2nd gen one
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I'm very happy with my PDI manifold
Last edited by 94 12valve; 02-01-2010 at 01:08 PM. Reason: Automerged Doublepost