Just about all parts sold in the US that you can only find in Japan are copies. Pretty much every body kit company has to remake JDM kits in the US otherwise you pay ridiculous pricing to have them shipped direct from Japan. For example the Greddy Gracer front bumper, how many Z owners do you know own an actual JDM Greddy Gracer front bumper. How many Z guys do you know who own the copy of that front bumper known as the G-Style Bumper ([ http://www.carid.com/1990-nissan-300zx-body-kits/extreme-dimensions-body-kit-304886.html ]). These are exact copies so you don't have to pay $600US for these mirrors. Why pay that when we have made similar mirrors for more than half the price?