Ive recently picked up a modified v8 discovery, while going through the various jobs on it i spotted the Y pipe has damage from offroading, Im wanting to change it but im having trouble finding a direct replacement.

Can anyone tell me if this is an off the shelf Y pipe that has been installed or is it a custom. If anyone can shed some light on what its from it would be appreciated.

Its 3.9 v8 out of a rangerover with a carb conversion.

The manifolds are 4 to 1