I heard that the Borla Headers don't put out really good gains for the Z... how factual is this? They are advertised as putting out as much as 12hp. Now while I knew they wouldnt put out that much when I got them, i did expect at least 7-8hp.

Anyone know what their actual gains are?

 

I heard the same thing about them, really low gain 5hp or less. But that's only what I heard so don't quote me on it.

 

bump

 

I heard about that here too:
http://www.350zmotoring.com/forums/s...threadid=17264

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There is a group buy on them for $230 delivered.