I'm taking parts of my track GT4

it's the narrow body twin pot calipers

I wanted to know if the twin pot is a bolt on for the ST184 (n/a) on my daily project?

Would i need to change the Brake master cylinder aswell from the gt4 or are they the same?

I know the gt4 wide body single pot can fit on the St184 but need to confrim this

any GT2 or super n/a with brake conversion help me out with this information

Cheers

Andrew