Manufacturer unknown. Used on a Swift Sport ZC33S. Please note that this is not carbon fiber. Both the left and right sides have two broken tabs on the back, and they are almost completely detached. (One is completely missing.) (Photos 4 and 5, red circles) It can be installed normally, but please purchase with the understanding that this is the case. Also, because it is an aftermarket product, the fit is slightly less precise than the original. Instant purchase OK. Thank you.