In Shitafornia we have a group of vegi eating bitches that have their heads far up their ass and pollute the world with smugness. That group is called CARB (California Air Resources Board). It was created in the 70's when the EPA (Environment Pollution Agency) said that vehicles had to stop polluting less and each state can only pollute so much. Because there were so many cars on the road in major cities in California, the air not only didn't meet the standards but it was so horrible that if you left your house in the morning your eyes, throat, and nose would hurt severely by the end of the day. California then made this group that made California have much more strict emission laws. It eventually worked; The smog went down and everybody was happier.
Now to make sure everybody isn't just saying their cars don't pollute, we have to have are cars smogged every 2 years. The test consists of a tail pipe sniffer that shows how much Carbon Monoxide is coming out of your vehicle. Unfortunately, it also consists of a visual test that makes sure all the emission parts are still on and if you've kept your engine stock. Now that's the part the tuners here in California hate!
There is a way around this though (well kind of). If the companies that make aftermarket parts have CARB test their equipment, they can get a CARB exemption (EO). This means when doing the smog test, your car will pass with that aftermarket part on your engine as long as it doesn't drastically effect your emissions. Everyone will agree that if they would just not have a visual test then it would not only not hurt the environment it would create a market in this money needing state, make people happy, and create an environment for new inventions.
Also, even though this is only enforced in California, it still affects cars in the rest of the United States because car manufactures aren't just going to either A. not sell their cars in California or B. Spend money on special cars just so they can sell their cars in California. So basically if we destroyed California, everyone would be happy!
OT: Man I've really noticed that my grammar is really off today.