Newbie looking to do custom work

Alright I've been looking at posts on here for a while looking for advice, most of it was helpful or set me in the right direction. I decided to join myself and I was wondering if anybody could give me any suggestions/ things to do to make my car look mean/sound mean without voiding the warrant. I looked around for eyelids for my car but all I could find was this website http://www.autokitsx.com/imagenes/pr...-%20copia.html. I don't know there's anyplace cheaper to get eyelids or not. I am also thinking about body kits. It's a 2012 galant SE stacked w/leather,nav and all that fun stuff.:003:
Any help is appreciated thank you!