This may not be what you want to hear yet I thought I'd just add my view. If your car is a V6 maybe hold off on the body kit.
*Maybe lower it and if you dont have already have 'em,
*put some nice mags on there. Something not over the top.
*Also de-badge your car and maybe add some holden chrome from a berlina/calais to it.
*For the ultimate look also add some factory fog lights at the bottom.
Your car will look very awesome without the look of a 'try hard' V8.
If your car is already a V8, go nuts. IMO there are just too many people dressing up their V6 to look like a V8 and some people consider it tacky.
Just my opinion yet whatever makes you happy is best. Good luck with what you decide.
If you do get a kit, the Senator one looks cool, without spoiler. S
orry for the big pic, linked to another site.