I'd like to see a dyno sheet for that 14hp increase! Maybe someone on here who actually has this intake could give their opinion.
Here's an eBay one that is basically the same. Just get a better filter and you're good to go!
Red 08 12 Scion XB XB Cold Air Intake Induction Kit Filter | eBay
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^^^ THIS! There is literally no reason to buy anything more expensive. BTW...no CAI alone will get you +14 HP increase.