I also dont no, just come to know from my mech. according to him, this 2 speed radiator fan is more cooler compare to ori one. ofcours need some mod lah..
i just bought a used type s bov($450) and installed yesterday.. somehow i doen't ike the sound..
just wondering if someone would like to change their bov with my this type s (no ssqv pls - as i used it...