Injen Cold Air Intake installation
My intake is very well made and I expect it will out perform every other brand. The location of the filter head gives you the very best source for cold air. Problem, to install it on my 2003 Mazda Protege5 it requires I remove all of the front body work to get to where the filter head goes. What is even worse, you have to do the same thing every time you want to service the filter head. If you pay someone to do it, your looking at big bucks. If I knew that going in, I would have gone with the AEM which I have always found to be excellent and easy to install and service.