Quote:
Originally Posted by BonzoHansen
Isn't the cat after the Y in 3rd gens already? Or is this y going to push the cat even further away? What about nice & simple 3"collectors to 3" cats to y?
It appears Al's budget is tight which is what made me think single cat like the OE setup. Is he building a fast street car or a race car? If he leaves 10hp on the table in a street car because his budget does not allow more, so what? You can't always chase the theoretical best when the budget is limited. He can always go back and change it later as funds allow.
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But he is not doing an OE setup, he is doing long tubes. I don't wanna be argumentative, but LTs will push the stock location of the cat way past where it was, and since you can no longer have the cat straight after the merge, the merge of the ORY will stick the cat pretty far back. I just would hate to see Al throw all this together and then have a cat that does nothing but cause a flow blockage.
An OE Y pipe allows for both manifolds to dump together relatively close to the general area after both manifolds, LTs will not allow that, so to place the cat an equal distance from each header it will need to be far back, or you run two.
I'll shut up now.