What problems have you had with ModQuad? They make good products.
i have had a few billet thing not fit right and eventually get broken because of the poor fitment. then my cool head blew the oring and killed my motor the second ride out. and i had a modquad billet impeller that was junk and had what looked like spurs of metal off it. and i know of a couple guys having problems with there billet. they have cool shit i just feel they dont have as great of QC as others.
p.s. i didnt see what firehead wrote maybe they have solved there problems i havent bought anything from them in awile. in any case nice gas cap man!!!