i was thinking this over and my bro told me that with "cold air intakes" like the evo one when u start it in the winter when its been sitting for a while to much cold air is bad for the engine. well then i was thinking when it car is off the stock air housing is reciving cold air 2 because the car hasnt been running. is this tru where 2 much cold air is bad for startups in the cold weather? cuz it gets ass cold up here in michigan and i just want to know if i sould wait till spring to get this intake. also is the bypass valve realy nessasary?