I just bought my first truck a 2007 chevy colorado v4 2.9 liter and was looking to add some sort of air intake kit. i stumbled upon the Airaid 200-142 intake system. I was just wondering if anyone got a noticeable difference in hp, mpg, sound, etc with an Airaid. i was concerned however that this does not come with an intake tube so i would have to use the factory one. i looked at the K&N 63 series which seemed better but it was more expensive and not street legal in california which is a bummer