Mazda RX-7 FD3S Carbon Fiber Door SillsPlease allow 6 8 week lead time when ordering carbon parts. Fall in love when you open your door and see a perfectly laid piece of carbon fiber covering your door sill. This is a true "bolt on" replacement for the dull stock plastic door sill using provided 3M molding tape. Not only that, every Carbon Fiber Door Sill set for the 1993 2002 Mazda RX 7 [FD3S] is offered in one of three awesome carbon weaves and a handful of colors for the RX 7 logo.