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Filter Finder Knowledge Base

If you are having trouble finding a filter for your application, please check here first as we publish all of the answers for questions we have received in the past. Often times we receive similar requests and you may save yourself some time but reviewing this section of our knowdedge base. If you are not able to find an answer, please send us your request for assistance using:
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Can you tell me what the difference is between the Part # CF8391 AND CF8391A?
The CF8391A is the newer cabin air filter by FRAM. The main difference is that the CF8391A is their Fresh Breeze brand. It has Arm & Hammer baking soda impregnated into the filter. The CF8391 is an obsolete part and has been replaced by the CF8391A. We do have the CF8391A in stock and ready to ship. I have attached a link for your convenience if you would like to place an order. We are currently running a special with free shipping on orders over $50. FRAM is also running some promotional rebates on oil and air filter purchases. You can see the details of the rebates by clicking on the rebate image on the link I have included. Please let me know if I can be of further assistance.

Can you tell me what the difference is between your Part # CF8391 AND CF8391A ?
Does the filter come with instructions?
This is for Buick 2001 Park Avenue 3800 V6