Caterpillar

You guys are kidding, right? Bills pipes? lol ... Maybe I have come to the wrong place for info. I have a buddy, he used to run Bills. But he lost every race against Toomey T-5s, FMFs, Pro Circuts, and even my 'Shee, which had stock pipes. The only mod I had was a GYR-T box and a rejet. Needless to say,after losing to my stock YFZ450, he lost the Bills and went with Trinity. I think he has a few other tweaks done now as well. I can't wait to race him again..... Seriously, I don't mean to stir the pot on my first post, but, Bills???...........lol........