only going by someone else who did the st185 swap fella he advised so.
thought may as well add that in so peoplesort of have more info if you get me.
agree about fade due, my calipers OEM, were good, but since doing the celica twins, fade is a lot less,
dont forget guys, the brakes we upgraded to are designed to stop cars at least 300kgs heavier...
one thing to add, the st185 has more pads options but mintex do a set for the st165's jus ring them and they should help you out.
fensport sell redstuff pads, but these need tad bit of grinding as they are from an imprezza, which has similar sized twins...