Ok so I'm wondering if anyone knows if there is a difference between the brake booster on a GT4 and a USDM car
(besides the RHD vs LHD thing) because to me it looks exactly the same and I should be able to fit a USDM brake booster with a ST205 master cylinder?

ST205
PN:44610-2D720



ST204
PN:44610-2D140

The GT four/AT200/ST204 all have same brake proportioning valve. The twin piston ST202 are only trims which use different brake proportioning valve