My car has the standard ground effects on it and I am thinking about upgrading to the SS trim kit ground effects. It's something like $1,500 from GMPP, but maybe I can find the right parts at a much better price from a junkyard? I will probably look for an 06-07 spoiler to replace my surfboard one too.

But the thing Iam wondering is what do I have to do to put this on? Does it reqire you to change out your whole front/rear bumper or can I just put the ground effect strips on the bottom of the bumper?

 

the HSAP gfx as you are looking for, requires you to do some cutting in the bumpers to install some clips from the back side. There use to be some intructions running around the net, but I don't recall where they are.

 

if you find something like that on the internet tell me about it im interested in doing something like that to..