That's true, but I believe in the saying "You get what you pay for".

I don't know the other brands, but Powerchip is a very reputable company that has been around for a long time.

They really put a lot of effort into the R&D of chips, that's why the have a limited number of applications, I have seen in the past companys that have a chip for every car sold, how much R&D is there?