Intake + Exhaust = what hp gains overall?

chknhawk

I like my invidia pipes. I think the sound and work awesome. I think honestly pipes are pipes. I think the only thing that would make any kind of difference and no really on HP is the o2 bung. The matched up nicely and fit properly. That's pretty much all I wanted. I wish I had some headers and Looking and reading the single pipe versus one piece molded are more efficient .

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