Here in australia they all recommend the Blitz SBC i-D. Dunno if it's expensive there in malaysia. But it seems that you can set the thing in auto mode, set your max boost .. and everytime you boost it will configure the gain and etc automatically ..
Have a set Apexi muffler for sell ,using 1 year.plug and play.
The muffler still install at my car,will open up end of this mon.
The Apexi muffler P/N: 149-T006. New unit more then...