ah tiu... boost controller is only how much wor... your bro sold me rm80 only, for you i think he will say take and use 1st la. so its 0 cost. Boost meter, without it ur car still can run right? im running my car without boost controller back thn for 1 yr. how about it?
if oni those hardware/mechanical parts u can pay by installments, that is best news. coz that is all what u need for BOT. So i dun see you need any downpayment also. so its another 0 cost.
no one ask u dun pay emanage ma. u still pay for it. To BOT, you will need to find parts which takes time also mar. so around nov or dec you can start push ur car in liao lo. So in that period you can save up abit and pay abit to your bro mar. correct?
so meanwhile all you need to do is think how you want your setup to be like. simple rite?