Been reading some of your old posts and it seems you have a 1.4, with lowered suspension and 15" alloys.
Oh, and a strut brace...
I would go for some GTi/Cupra bumpers and clear front indicator lenses... Just make it look tidier... Maybe a badgeless grill?
It's pointless spending money on trying to extract more power from your engine, if it is indeed a 1.4 you have.
Also, what about the half leather interior from the 16v Cupra model?