Are we talking a stock replacement style racing bumper? If so you have to figure out what you want and fabricate it yourself or have someone do it for you,I can't remember where I saw it on this sight but I think the caption had to do with weight reduction,the feller had a hot race car and was chopping all kind of weight off of it and fabricated mounts for a glass bumper,look around and you'll probably find all kind of interesting stuff in here,Hope I helped,Later,KillerDave