as wondering can any1 tell me the diffences between the two? i am looking at the AEM CAI or the injen RD. every1 i know pretty much have the AEM, but on carreview.com they said that injen gives u extra 10hp? is that true? and after looking at the injen pics, i guess there is no way to put a air by pass value in it? living in Maryland with all the rain and snow, air by pass value would give me a piece of mind when driving. well if there is anything i should know about the two, i would love to hear it. thanks again for your help or even just reading it. :bowdown: