I asked giac if i could get this file for my ko4 setup. Just to let you all know, it doesnt exist anymore, or simply its not supported. Pc-16 still exists, and i dont know about the hammer file but if anyone wanted the better file its just no longer available from giac. But i was told i should upgrade my intercooler after i install the ko4, lots of people dont think its necessary, but if giac told me to do it ill prob do it lol.

 

the psi you run will determine if you need a fmic or a larger smic.. 15-20 psi on a regular ko4 filewon't require it. but if you were to run 25+psi on the PC-16 for example then you would NEED a fmic to get the air charge cooled down properly.. otherwise it's a catch 22 situation