[JRTJH]

If you want it to match the existing left skirt, go to a dealer and order it. There are a number of sites on the internet that you can order parts from, however there are literally hundreds of possibile choices. Do a search here for fender skirt and you'll find several links to internet parts houses. On one of them, there are measured drawings of their replacement parts. If you start trying to match what you have, you'll soon find that it's more confusing than you'd think. If you do find one you think will work, it's not that much cheaper than a dealer would charge, and if it doesn't quite fit, you're stuck with something you can't use.

If you go to the dealer, tell him what you want and let him get it, you may pay a tad more, but if it's not right, it's up to him to do the exchanges, not you.