which performance chip should I get for a hyundai accent 2010? i want fuel economy above all, but power i fun!

ive tried suggesting chips to people efore on this site and no one ever wants to hear it, claim they're all a hoax and dont actually work, so ur probably not going to get too much insight on this.....BUT ill try my best, its hard to see which chip is best, but i generally go by which claims to give u the highest hp, how easy it is to control(if it allows any manual control), and most of all how good the warranty is....if it says it voids ur vehicles warranty dont get it, generally that means it will do something unsafe to ur engine or exceed tranny limits

I read many conflicting reviews from sites that bash a direct competitor, who in turn bash them back... also, i often see some reviews being an overall 3-4/10 when only one brand is said to be 9-10/10... how biased are they all?... my car's warranty is shot already, so it's not an issue, but i understand why those aren't a good idea. my price range is between 50 to 80$ and only Performance Chips Now seems legit. no good or bad reviews found so far.

my suggestion....save your money. you wont see any change in fuel efficiency and a couple hp gain wont even be noticable by you. you say power is fun....throw that $80 into a savings account and slowly add to it whenever you can. once you get enough saved up buy a fast car and keep the one you have now for a daily driver.