..about the color of wheels-i'm wondering about re-painting them into black with red corner,just like mugen...
Hmmmm, my opinion on this is, if it aint real Mugen dont copy the look

There are more wheel manufacturers that have that same color combo, like Enkei, Rays Volk, Work and Advan.
If you do it, then do it, but dont claim your wheels as Mugen replica's

( I think they look hot in white y0

)