its the same thing for both CAI its really easy to install them. i think the hardest part is taking the stock one out. good luck:thumb:I have read nearly all pros and cons and have decided to go for CAI. My only problem now is which one is easier to install between the Fujita F5 CAI or the Injen CAI? Keep in mind, if it means spending an extra hour installing a particular CAI that provides more HPs I do not mind.