Review on π K&N Cold Air Intake Kit for 1997-2002 FORD/LINCOLN: High Performance, Guaranteed Horsepower Increase, 50-State Legal (Expedition, F150, F150 Harley Davidson, F250, Navigator) - Model 57-2514-4 by Bart Schwalbe
K&N states that a loud intake noise is normal for a 97 4.6L truck idling after driving.
97 F150 4.6L. Bought and installed in my truck. When I stop, the CAI makes a loud sucking noise (not a hiss). My check engine lights don't come on. I called K&N support and they said the sound was normal and there was nothing they could do. If this is a known issue and there aren't any workarounds, I expect the company to make sure the customer knows before they buy it and waste time on it.
- WORLD-CLASS PROTECTION: Push the limits of engine protection by shielding it from harmful contaminants.
- Compatibility
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