Are there any performance chips which will actually work to improve performance in my 07 Accord 4 cyl?

So, I'm considering buying a chip for my car. Does anyone out there have experience with them in Hondas? Which ones work and which ones don't. Any dyno testing? I want a low-priced performance upgrade, but I don't want to waste my money.

Added (1). I will need tobacco? Now I'm really confused. I want my K engine to have slightly more power. What's wrong with that?

Chips do nothing for your car. They are a gimmick to get your money. The only way to possibly change the performance of your car is to buy a reprogrammer for the brain in your car… There are not cheap upgrades. Cold air intakes don't work either.

Chips are so last century. You'll need tobacco use a digital ECU tuner. Try Hondata, though modify your economy K engine is probably a waste of time.

You can increase power slightly at the expense of fuel economy, engine life, and emissions control. Honda spent millions of dollars tuning the engine for good life, best fuel economy, emission control, and best power consistent with all that. Throwing in numbers from some hack shop will not improve on that. Honda would have done better if it could be done. Nearly all manufacturers will invalidate the power train warranty if the programming is ever changed, even if they are changed back (yes, they can tell). If the top experts take that stand it tells you how messed up the "chip" idea really is.

I have a friend who was very into tuning his Dodge Ram. He stopped when he was on his fourth engine and third transmission. I think I would have stopped before that…