Can anyone give me info on this kit. I heard it was really fast and no 450 has touched it. The kit has ran in drag racing compititions for 4 months and hasnt lost. If this isnt the kit to get should i go with sparks 490. I have some of his products and they are good! But the only thing he can do to beat this quad is to lighten it up. Can someone help me out? Please give your suggestions.

 

its a 505yfz and it can be beat, buy a ESR 480R, both were top contenders at FSWS 6 motnhs ago, watch the video, then check my pics to see the yfz, copy and paste the link

http://www.raptor660fam.com/open%20500%20under%20cc.wmv

 

if you already have your topend done i would get the ESR kit!! i have seen them run and for the money it's the best deal out there$447 or $485 can't beat that. ypu dont evan have to tear in to the bottom end just bolt on.