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Hey guys, This is my first thread so go easy on me. I have a 2001 civic EX manual. Slowly adding mods, first one was an Injen cold air intake, but I live in New York and I'm scared to death of hydro lock so I want to add an AEM bypass valve, is this even possible? And what size do I get? AEM calls for a 2.5" but thats for an AEM cold air. Is there any size difference between Injen and AEM cold air intakes?

 
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No major difference in intakes aside from looks and prices. Some are cooler imo like gearboxes, but they all add .00008 hp =P the bypass valve will not work unless the filter is completely submerged underwater.

 
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Thanks for the info, but can I use an AEM product with the Injen cold and do I get the same size bypass valve that it calls for on the AEM cold for the Injen cold?