RE: is this worth it? (HPI RS4 3 EVO ) craigslist
The chassis are identical, except for the drift version. The main differences between the various versions of the RS4 3 are the motors. Everything since the original RS4 3 has been a 2-speed as well. Anything that fits the RS4 3 you can assume fits the 12SS, Evo, 18SS, Evo+, etc.
*sorry, so to answer your question search "RS4 3."