I can supply these fibreglass front wings now for the GTA. Much beefier than the originals, they have a slight flare like the rears and widens it by 20mm. They also get rid of the ugly indicators and fit identical to the original. They will fit the standard front bumper and the Lemans copy bumper..but if you use the standard bumper, its best to mount a small flasher unit into the headlamp mounting facia.
They fit as original i'm told. I think the manufacturer used an original wing as a mould and built off of it, so all the original inside lines are still there.