Hi all ZTH members ,
Have to you heard before this CROME tuner for SPECIALIST HONDA VTEC B series engione from KL which can tune your ECU suit to your car engine performance ?
Isnt really true ? or really work ...
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...