Intake Cam?

:
83 RX-7 Gsl, 2000 Mazda Protege LX, 2011 Mazda3 Sport i
Someone stated: "FP > FS JDM > FS US" in a thread about cams. So I want to know if that's true and if so does that mean I should get FS01 intake and exhaust cams?
 
Back