I have the K&N on mine aswell. Some do say they are hot air intakes but when my car was on the dyno I had fans blowing through the front grill (like most dyno's do) and I noticed a good amount of cold air coming through the factory intake ports. Seems to me if your driving down the road you will always have some fresh air being forced into the airfilter. Either way you get smooth intake tubes and a good open filter with the kit. Plus most dealerships want void your warranty with a simple K&N setup.
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