Its been a looooooonnnggg time since last update. By the way, I've just change my small aluminium radiator to big 3 layers full aluminium radiator.
Next i might change to new header because the current 4-1 R3 header got crack inside. Still thinking which header setup should i go for. Whether to stick with 4-1 setup or 4-2-1 Cusco or maybe 4-2-1 Hytech design........ Any recommendation guys?