i don prefer meter in car coz too many meter make me blur.I prefer seller from north place like perak or penang area coz me from perak so easier to buy lah. BUMP~~~
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...