I was thinking about doing the same thing but with the gts kit. I have a 87' 325is and the only reason i thought about doing it was because the spolier is the closest to the stock one on there now that is not availalable anymore. and to keep the stock one in good shape. also for the oil coooler, but the kit is just the body pieces. you must buy the fender support, ducting, and also fog light mounts if you want them.