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468 Posts
Discussion Starter · #1 ·
I currently have smooth tubes/k&n's/ and the previous owner put high-flow cats (not sure what kind) no resonators and stock rear muffler.

I don't really care for the sound. I want to do Headers/no cats/exhaust but what else.

Do the rocker arms help out quite a bit? Do I need Headers/exhaust before I do these?

What kind of HP gains?

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