Power bomb with WB E series?

Any one see anything wrong with running a FMF Power Bomb or mega bomb with a White Bros E series pipe? Do they really help low end that much? Does the addition of the head pipe require rejetting? :naughty::naughty:

I have the power bomb and e series combo on my wr 400. It will pull better bottom and mid......... I did some rejetting at the same time but nothing too drastic. I am at 8000 feet so my numbers might not help you.168 main and a 42 pilot. Did the zip ty fuel screw at the same time and it dialed right in for me. :naughty:

You rock thanks for the reply. Did you ever ride the bike without the bomb? Big improvement?

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