Which Cold Air Intake is better?

I got a 2012 Chevy Cruze Eco a few months ago and I am looking to start modifying it without killing the great gas mileage. That being said, I am starting with a cold air intake. So which is better: the K&N 69 series typhoon or the Injen SP series? I have heard good things about both but I want to know which is better and which is more preferred. Thanks guys!

-Joseph