maoy, what's up man? I am the guy that put a .21 in my NTC3 and now my Ofna CD3 cars. We talked a few times via PM's and I see that you have got that thing finished and running hugh? Looks good man and you went with the 1/8 scale fronts all the way around. I see you are saying that the gears will strip, are the gears for the RS4 plastic or steel? You got any videos yet?
BTW, you are more than welcome to post your pics and information in a thread that I started in the regular on-road section. Link is here.
http://www.rcuniverse.com/forum/m_8246301/tm.htm