Hey, I have a 2009 yz450f. I am sponsored by Dr. D., so I just got exhaust and the radiatior lowering kit. I also have my suspension dialed in as well. But that is all I have so far. What would you guys recommend I get to improve my bike? I have heard that the loudmouth intake is just a scam and doesn't really add power.. Keep in mind I still want my bike to be reliable. I have quite a bit of money to spend (Out with a torn acl, can't ride, but can work = $$$) so tell me what I should get!!! P.S. I race mx B Class.