300ex/yz450f motor

[151racing151]

Hello,

So I'm in the process of buying a 98 300ex with a 2003 yz450f dirtbike motor in it runs good but other then that it's stock wht mods should I do to inhance the quad for top performance???

Thanks!

[guy310]

you sure it doesnt have a 250f engine in it? If its got a 450 in it its probably dangerous.

[151racing151]

No it deffenitly has the 450 in it yes it's something else but I need some cheap mods it's gonna have to be extended ik this much but wht else should be done?