Need Advice on Header.

I found a good deal on FMF headers. Does anyone use one, and which is better the Hi-flow or the powerbomb. What are your guys opinions on them. I already have a powercore 4. Would I have to rejet or can I still run the stock jetting like I am.

I used to run a Powercore 4 with a ceramic coated powerbomp header. The header added lots of low and mid power. I went 3 turns out on the fuel screw and up one size on the main. I have the Powerbomb for sale if you want it. $100 + $10 for shipping and it is recently ceramic coated. Let me know.

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