Paul=
No it is not mate

you mightve been told it is, but its not

the bloody exhaust housing has a totally different bolt pattern on the outlet on yours, im not having you on mate, messed with enough cossies and rst's over the years to know!
RSTs have a 5 bolt outlet with an elbow, like yours.
Cossie ones have a circular outlet with no elbow, and 3 bolts which go directly to downpipe.
That is why this guy is asking, as in your setup itd bolt direct to an Escort RST exhaust, but when fitting a Cossie turbo you need a custom downpipe as there is no elbow etc.
Tim, Ollie, Rick, Christian, etc etc hopefully will be along at some point with pics of their cars to show what i mean.
EDIT- Berry has just shown exactly what i mean above

THAT is a cossie turbo and the modded downpipe needed to fit one to any RST