It was actually easy but the instructions were not too clear, so it took me a little longer. I wanted to make sure that everything was installed properly. Now my question is, what do I have to do so that the computer can properly adjust itself to the new intake? I drove about 20 miles today with the intake, I saw a noticeable increase in response and the sound when accelerating was different, like a roar or a sports car. When in iddle it's quiet. I wonder what is the service interval for this particular filter?