As far as cold air intakes, there's the Hotshot and the PRM. The hotshot lowers the filter towards the bottom of the engine bay, check my site for pics. The PRM has the filter directly attached to the VAF covered by a heatshield and then you have an aluminum tube attached to the cone filter that leads down towards the same location of the hotshot. If your area doesn;t suffer from a lot of rain, get the hotshot. if you do get rain and snow, get the PRM. Either way, stay away from deep puddles.
PS, you could also get the AEM bypass filter with the Hotshot intake like I did in order to help prevent water ingestion.
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