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So I have been shopping around for both FAST 92's and having the stock manifolds ported in both Amy's and my C6's. So here is the question - which is better? Porting stock manifold or FAST 92? The FAST is much more in cost, so do you get any more performance than you would with stock manifold that was ported out?

Jim
 

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If you already have both then obviously do the fast, but be careful it is a two piece and you don't want to really weaken it any further.
 

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Ported FAST > ported stocker especially as you add other HP mods.
 

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Doesn't the FAST require cutting of the firewall?
You can cut a piece off the back of the FAST. Several shops that port them will also do this for you.
 

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I called them up yesterday and they said their new 102mm FAST doesn't require you to cut into your fire wall. :thumbsup3:
Isn't that for the LS3 or did they come out with a bigger size for the LS2 also?
 

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The guy I spoke to didn't mention anything about this not working for LS2? Do they only make them for LS3 motors?
They do show a LS2 compatible version on their website. :thumbsup3:
 
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