would it be possible to put a t-maxx 2.5 engine in an HPI rs4 rtr3?
and if it is possible what steps would i take to doing this. my friend told me that its possible and he would do the conversion for, but i dont see him much. if not the 2.5 then what kind of engine upgrade should i do for my rs4. should i put in the .15 ss, ive heard good things about it.