Id like to contribute with a non troll response.
Swap the tail and head lights for VY SS lights which is pretty dam cheap. If you sold your aftermarket tail taillights and get both, you could also try VZ SS taillights which would look awesome.
Fog lights could also look good, it really finishes off the front.
My advice is dont black everything out in sight lol, Black looks blackest when put with something bright/light it creates contrast. So id go about adding some lighter touches maybe a touch of chrome, like calais window surrounds. NOT black rims, light silver works great.
Performance, Id do brakes. Either upgrade the rotors to something like DBA T2 street series which look awesome (im about todo it to my SS) or getting some second hand HSV ones. But given its a v6 new rotors and good pads will be more than enough. AND since the brakes are coming off you can paint the calipers to add some colour!