high speed body kit

Whats up guys, I wasnt quite sure where to post this thread because it is a mix of both performance and non performance and I would like opinions on both. I have been upgrading the performance of my gsx for a while and now I am looking to add a few cosmetic upgrades as well. Here is my question, will a bodykit affect a cars performance? As in weight and air dynamics? I want to look good but not at the expence of my cars performance, I know fiberglass and urathane cant be too heavy but im not sure. Also what is the ability of a bodykit to stay on at high speed? I dont want to be doing 100 done the 1/4 mile and my sideskirt fly off and go through the other guys windshield :eek: lol. Forgive me if this is a stupid question but I just want to be sure an upgrade like this wont affect performance, which is what Im all about, I just like to look good while im doing it :smile:

Kits dont weigh too much. Just make sure when you put on the kit that everything is mounted good with NEW mounts, and you should be ok.

I agree with David-b. A buddy of mine was pretty much in the same situation as you. he got every thing molded instead of mounted. Well actually he mounted then molded, but u get the picture