Newsflash:body don't do the job they're supposed to.
Okay... here's the deal. I was cruisin down Hwy 59 in Houston at about 70 when a white Honda Civic flies past me at 80. He had a body kit, fart can, and the biggest wing I've ever seen. Normally, I leave cars like that alone, but I was just curious. I sped up to 85 so I could get a closer look at what he's done to it. I figgured, the cars pretty old, I know body kits aren't cheap, it looks like he's had it for a while... he might have something worth while in it. So I punch it a little from 80 in 3rd. He catches up so I punch it again. At this point I can't tell if he's racing me. So I'm doing about 100 and let off to about 75 and cruise. I see him running up on my ass so I drop it to 3rd again and I can't tell if he's racing me. So I let him pass and I get behind him. I ran up on his ass and noticed that yes, he is indeed accelerating. Then I go around him and put a good length on him to let him know he should slow down because I'm out of his league. I come to the conclusion that a body kit and wing only gives you about 10 hp when stickers are the real deal.