Most people on here have gone with either a cold air intake or a short ram intake, either from Injen, K&N, or AEM. K&N is the short ram intake (stays up in the engine bay, does not go down into the fender well). AEM is a Cold Air Intake, goes down in the fender well. And Injen is a Short Ram Intake and also a Cold Air Intake, you are able to remove some of the piping that comes with it to make it into a short ram or add all of the piping for a cold air. Most of these are all around 150-200 dollars, new or used.
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