I've been on the fence about this, too.
I've been driving around for a while with F.I. CF CBE and Berk HFCs... love the sound and the butt dyno says it's faster.
Probably the only other things I'd consider doing are post-MAF tubes + filters and a tune.
With just the basic breathing mods done... will I notice a difference from a tune? Is it worth the price?
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King Joseph I
2012 370Z Nismo || Berk HFCs | F.I. 12" CF CBE
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