6 Pack air filter by K&N will fit any of the mopar 6 pack air cleaners as well as 1970 426 hemi. K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. These filters are washable and reusable and are custom designed to fit into your existing factory air cleaner. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N.