MK1 and MK2 have different part numbers im afraid, with that in mind I can only assume there has been a change somewhere.
However i have found 4 types of exhaust systems for the 1.6. I wont go through the differences but 3 out of 4 look the same. Best bet would be to examine yours then look at the other exhaust your interested in and see if its the same. Chances are it will be.