I think it's a optional lip that run around 200 new not sure tho,looks like thisIts strange looking lip and I dont think its oem. Never seen one like that.
Honestly, I think you paid a little much for it since its a pre-facelift bumper. Look at Exige24s bumper and oem lip. Its a 92 facelift with the lip. They arent too expensive. I wouldnt pay more than $50 for the bumper and $40 for the lip.