header pipe question

i have a whitebros e-series slip on my 400ex can i get any other headpipe than fmf powerbomb or is that the only one

[crday98]

i think they all are interchangeable.i know fmf makes the high-flo hearder too,there is a place in the links section of this site(xr's only) that has their own and i'm pretty sure you can buy one sepreate from white bros. and pro circut.

The FMF powerbong will work with the E-series pipe,,,I've seen a few people out here with that setup...but do get the powerbong over the high-flow header it will work better for you,,,,even the techs at FMF recommend the powerbong over the high flow header, I called and asked 3 of them what they would use if they had a 400ex and they all said the powerbong ,they said the powerbong gives more power from top to bottom compared to the high flow header,,which I think adds more to the bottom and mid only..