Looking for performance(hp), ease of install, and good price. What's better AEM or Iceman Intake? Or any other brands.

Just an intake will not give you any notable power gain. Also the Iceman really doesn't free up the air flow like an AEM shorty or CAI. If you are considering an iceman save your self $200 and remove the resonator on the air box. The AEM's are real nice quality. There are two different ones you can get. One, the shorty witch just draws air from the engine compartment. Two, cold air intake. This one is similar to the shorty but longer so it's able to draw cooler air. Both the AEM's free up the flow very nicely. If you can afford it get the AEM CAI with bypass valve. The bypass valve is a must on the CAI because the filter has the possibility to getting wet. I personally have an OBX short intake. I know racing is very dangerous but I'm young and I figure I can't get caught (delusional). Now that is out of the way, I raced my car's twin which had an Iceman. I beat him by a car length. So the Iceman really isn't worth the money. The AEM's are expensive but about the best option for the focus. As far as install both are very easy all you need is a flat head screw driver and No.15 torque screw driver (for the air mass sensor). Also a lighter or something to heat the vacuum return hose so it slides on easier.