POWERCORE or WHITE BROS.

[factory909]

im plannin on racin mx this summer on my 300ex, i have a white bros e series pipe now, i was thinkin of sellin and gettin another pipe, i was lookin at the fmf powercore and possibly the supertrapp ids2 race pipe? or what are other options for a full blown race pipe, noise is no biggie since its for the track? help!:confused:

id get the white bros, i have fmf but i know the white bros is better