Hopping up the ignition is never a bad thing. The OEs use parts that will last or are inexpensive to make. You aren’t constrained by these things, so when you find yourself needing ignition stuff, look to Davis Unified Ignition. The company has kits for both the 2.5L and 2.4L (shown). Open up your plugs to .065-inch and you can burn more fuel. While it is true that the factory sets these things lean, at wide open throttle, they go rich. The four-cylinder spends a lot of time at WOT, and a hotter spark really helps get more power out of all that fuel. Good for 5-10hp, depending on how trashed your existing parts are.