don't know much about it, but its a used cobra maf, 89-93 55mm. the numbers on it are f1zf-12b579-aa afh55-03b serial number 2b12. anyone interested shoot me a pm. like to sell asap as i need money for tile in my bath remodel i'm knee deep in. i'm in lexington ky and can meet somewhere close within the next 2 days as the wife and kids are out of town. not sure what its worth, i traded some stuff for it and some other parts when i had my sentra. the screen is a little damaged around the rim but the maf itself is fine. thanks.