Someone asked about the warp 9 wheels, they are CRAP and I repeat CRAP. Do not waste your money. My front hub was bent from the factory and they are heavy as heck. The hub kept getting worse and worse when it really started to cause my axle to bind and front rotor to rub hella, I took them off and sold them. Anyway, I have black excels on blue Talon hubs on the way now and would role OEM's any day over that cheap crap. I guess the old phrase "you get what you pay for is true here" Also I just changed from the Pro circuit T-4 full exhaust to the White brothers carbon pro. The White brothers is so much better then the pro circuit it is ridicules, more power especially down low, louder and much, much lighter. Dont waist your time on warp 9 wheels or pro circuit t4 on an 06 yz450f, pro circuit may be good on others, I just didn't like it on the yz.
i second that, the pro circuit exhaust doesnt do anything really, my stock exhaust was better than the pro circuit, but i went to white brothers, and man did it wake up:crazy: