Hi guys, an easy question this time(hopefully)

Does anyone know if a Duratec decat pipe will fit into a sigma exhaust system?
When i was first looking at a Caterham I was taken out in a car that had a Duratec exhaust on a sigma engine, and the guy that worked for Caterham told me that all the ford exhaust pipe are interchangeable. Is This true?

Cheers

Good question, i would be surprised if the bore size of a 125 Sigma is the same as a R400 Duratec but then it would keep manufacturing costs down.
Uncle Albert might know.

Have since been told that the duratec decat will not fit a sigma.
But would still like to know whether the silencer off a duratec will fit one.
Or maybe the sales guy at Caterham did not really know what e was talking about?