I am driving a std 6a12tt engine with stainless steel intercooler piping, boost up to 1bar, tulang ikan 6 all open.. Previous w greddy taiwan bov set to very soft but there was sooooo softyy sound..low boost...
i read a Hong Kong car magazine,it says hks evc 5 have a program to tune the car boost more smooth called 'evc 5 easy writer'.it has a cd come with the boost controller,install the cd into laptop can tune boost nicer...