When I get the Powerbomb I'm going to get the Powercore and ditch my Megamax, it's starting to get really hammered looking. However I can't stand spark arrestors and I don't think FMF makes a P-core w/o the screen for the 400. Can you remove the screen? It will be the first thing I do when I get mine. Also, what main jet did you end up with on this combo. I have a #152 right now.
Thanks.

 

IM not sure but i think the FMF powercore IV2 is with out the screen the FMF powercore IV2 S/A is with the screen. As for jetting that depends on area you live in and other MODS.

 

booya... you can always get a new endcap from fmf.. I did just for that reason..