Actually, spent some time in Cali. I can tell you that 30 years ago, most major cities and large regions of Cali were suffocated by pollution, much of it from engine exhaust. I also know that fees paid into the program go to fund enforcement. So, things like this whereby people don't think their individual action has consequences just raise the cost of enforcement.
Also, emission costs for manufacturing whether Toyota or an aftermarket company is a cost of doing business. The argument that requiring companies to comply with emission controls is bad is ludicrous and if you like clean air.
Want to see what that place looks like? Try Beijing...you will see what not requiring companies to comply with emission controls looks like.
Again, your car, do what you want. You will here differing opinions, many on your side. .but when you post on this forum I will express my opinion. I believe that emission laws are great. I love clean air...the cleaner the better and iincreasing emission standards on engines, coal plants, manufacturors has played a huge part in that.