So at the Bikes on the Bay swap I picked up an old oil cooler. It looked cool and it was cheap. I didn't realize it was an oil filter until I brought it home. I'm sure it's an old chopper oil filter, probably 80's, but I'm not sure as there aren't any markings. It's heavy and chromed. It uses an old Harley oil filter, and the one that came with it is hard and crusty. This thing has never been used. I don't think I'll use it on my Triumph, but my CB750 custom might like it. It's pretty cool.