Obviously, you guys don't like stickers either.
I want to believe that some of these kids know that stickers, wider wheels & tires, a spoiler........none of those things add horsepower. I think most of them do it because they like the way it looks. I remember when people installed body kits to make their car look lower to the ground. Then every steep driveway and speed bump destroyed the expensive body kit. Same way kids do "home made" lift kits which are just plain stupid & dangerous.
Despite what a lot of people think is stupid, dangerous, useless.............there's a huge aftermarket for auto parts which are stupid, dangerous, and useless. Mind boggling. Unless that teenager is an engineer and able to manufacture his own parts - he's buying those parts. And somebody is producing them in volume.