right i knw there is two diffrent types of dumpvalves and maybe more the ones i know of are single/double pistons and im sure there is probaly other types if u know please share this information..
now many years ago i swoped my dump valve from my renault 5 turbo with my fiends fiesta turbo dumpvalve only to find out they didnt work on our cars but.....if i put my escort rs turbo baileys loud ass dump valve on a renault 5 turbo would it work properly..as the escort and fiesta dumpvalves are diffrent ..im not lookin for dumpvalves are gay opinions im just trying to further my knoledge of cars