hey guys, I just got an 09 yz450f and would like a little more power out of it soon once I get used to it. what would you recommend I get for mods? I am very interested in a JD jet kit, and an exhaust, but im not too sure which exhaust would give me the best performance. im leaning towards Yoshimura as ive heard good things about them. what do you guys suggest? What do u guys think about the fmf mega bomb is it interchangable withany other brand of silencer ? I ride lots of trails and would probably need more bottom-mid end than anything. anything else I should know/change on the new bike? this is my first brand new bike. I have a feeling the chain is junk and gonna get replaced soon, as well as the clutch/brake levers replaced with unbreakables or hand guards. how about a skid plate? any info would be appreciated. thanks.