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While Malaysian cars are often modded, the Japanese has done it a long time ago, back 30-40 years ago (with style). The video from AOL explains about the modding process and the choices of vehicles they used to mod...
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...