This is the gasket to be had at Fiat Dealers to for one reason stop the EML coming on. They must have tried and tested I assume its better to have it where it goes in the manifold as the MAP sensor must have to have some exhaust gas to stop EML coming on.

Its £4 odd plus vat.

been running that for a while now gotta say not noticed much difference(to a fully working clean egr valve) but then again nothing negative either.