I'm seriously looking at replacing the Cold Air Intake I've currently got on my 1991 Jeep Cherokee Laredo 4.0L (Spectre Industries Modular Tubes with Original Factory Bellows-Elbow and Amsoil Synthetic Dry Media Cone Filter) with a Donaldson G070020 Sealed Cylindrical Air Filter Housing and plumb a heat resistant duct to my replacement APN Exhaust Header in order to improve colder weather fuel efficiency. I'll try to post pics once its done.
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