Join Date: Sep 2006
Location: southern New Jersey
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All of the CAIs are similar. They will give you about a 5 hp increase. Buy what looks best under your hood. I purchased the MOPAR (AEM) CAI because I liked its looks and the fact that it has a washable (non-oil) air filter.
Also, don't worry about metal vs. plastic intake tubes. The air flow is so fast through the intake, the tube never gets the chance to transfer any significant amount of heat.