Maybe it has be answered many times, but i couldn't find it ( Sorry )

I'm looking for a intercooler to fit my zetec turbo. It needs to fit I'm my fiesta RS1800

a few options:

AIRTEC FRONT MOUNTED INTERCOOLER FIESTA RST T3
AIRTEC INTERCOOLER: FOCUS RS 2.5 ??
PRO ALLOY INTERCOOLER: SIERRA COSWORTH ?/

Will the fit ? ( the fiesta is not the problem but the focus one and the cosworth ? )
Are the other options ?


p.s it for a 2.0 with 280 bhp

also sorry for the English ( I'm dutch