It's brand new from Japan. 1.5 way LSD for the S13. I think it will also fit the S14. With a 1.5way you have less understeer than a 2way so your car will turn-in better. I can not find the brand on the diff and it was shipped in a plain box. Maybe it's nismo, but this is just a guess. Looking for 558 pounds or 795 Euro's, but I'm open to offers.