I totally disagree! The two best intakes on the market that has been proven over and over again on the dyno are the JLT II True Cold Air Intake and C&L MAF Intake system with an SCT Custom tuned XCalibrator 2! I have dynod and tuned every combination and the two I listed yielded the most power gain, well over the AFE, Ford Racing, Steeda,
K&N. The K&N and AFE aren't even in the same league as the JLT and C&L. The K&N and AFE retain the stock Mass Air Flow housing, which doesn't allow you to gain barely any horsepower. The JLT and C&L have completely bigger Mass Air Flow housing, which coupled with a custom tuned SCT XCalibrator 2 gains over 34 rear wheel horsepower and 32 foot pounds of torque. Any intake that doesn't require a tune gained no more then 5 horsepower on my dyno. The AFE, Ford Racing, K&N and any other intake that doesn't require a tune from the start is a complete waste of money. If you buy one of those intakes that don’t require a tune right out of the box and you add a SCT XCalibrator2, the only gains you will see in from the tuner (XCal2) so why not just by the right intake/XCal2 combo and get the full horsepower/torque gain and not just half!
Just my 2 cents
I've only dynod ever CAI that is made for the 05/06 Mustang and have factual information regarding what works and what doesn't!