I'm selling my ori evo 5 front bumper, including PIAA left and right ori sportlite.RM900..or awap with evo6 ori spoiler..PM me if someone interested with it...thanks...
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...