Well the chips on these cars don't really do a fantastic amount because its only on the ignition side of things so there isn't a great deal of difference. however if i were to recommend anyone to you to get a chip from it would have to be either Stu @ MSD or Christian @ APT (both traders on here)

A stage 3 head isn't really going to see you any benefits unless you're going to be running high boost levels and really have a turbo worthy of it.

A front mount really is your next best step and is probably some of the best money you could ever spend.