I was IN auto Zone to buy a oil filter for my diesel Cummings and they had 3 brands to fit my truck. They had a K&N for 15 dollars I said Wow. Why so high I ask. I bought a fram for a third of the price. When I got home I check on the Internet and check with K&N and the same filter Is $9. 95 ship to your home. No good deal at Auto Zone. My question Is do you think K&N filters are that much better.