Performance • small performance upgrades

Hey fello flex community. My wife drives a 2014 ecoboost limited AWD. She wants 400 hp! I have MRT exhaust coming, already put a k&n intake, and wondering what the next small upgrade to do. Keep in mind Im a newbie also. Also wondering if the performance upgrades could be done in "sport mode" and keep regular drive mode in OEM settings.

thanks for the help!

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