any vios sifus out there?i would like to ask what type of lowering springs should i use for my 06 FL vios.i'm using 205/40/17 on my ride...so which one is better?in the picture i haven't lowered my car yet coz i'm...
when the is -vacuum it will suck the diaframe to lower down the pressure, full throttle when 0 vacuum most of the stock regulator will rise to 41psi.
how about boost?
will the air pressure push the diaframe down and...