This DIY was done over a year ago, so I thought it will be cool to share with everyone. Mine was falling off as it has been years. So I remade them with car-wash sponge and it works very well, good as next to...
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...