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 ..
im looking at changing the suspension in my 04 airtrek, i am currently running H&R Springs on the factory struts, it has asthetically made the car look better, but handling, not alot better than factory so...