no such thing as a cold air intake. there is only an FWI, short ram/HAI, or open cone.

FWI has the most restrictive setup, but it nets the coldest air (not always the best thing). short ram/HAI will be less restrictive and get a little cooler air than normal. an open cone is the least restrictive, but it gets the hottest air.

depending upon your mod level that should help you decide which one you want. assuming youre asking this question because you have a stock car, then you would want to look into an FWI for now.