I have seen a 10-13% improvement in mileage (urban & highway) just from this intake modification. I know that there are a lot of people on mileage forums that espouse hot air, under-hood intakes. The CAI approach seems to be working for me. Bman
Maybe your gains are from the pressurization and not the cold air?
Leading the perpetually ignorant and uninformed into the light of scientific knowledge. Did I really say that?
a new policy....I intend to ignore the nescient...a waste of time and energy.
Mine hasn't had the factory airdam for over five years, it was pulled off by a marmot we hit on the freeway. I couldn't figure out what it was for after dragging it under the car for 30 miles @ 80 mph. I am glad to know it helped the milage.