If it fits, wear it.
on my 1.6 i managed to shear off both the bolts that held the shield to the gti manifold (all GTIs should have the heat shield in place too) So I used 2 large jubilee clips joined to gether and used them to hold the shield to the manifold, worked a treat!
what i meant was i used my 1.6 heatshield, there isnt any difference between the 2, just as long as it fits you're golden!