I confirmed with Exedy that the FJK1001FW includes the FF502 flywheel, BTW you can't just use the FJK1001 clutch with the stock flywheel, it won't work. I had purchased the FJK1001 and the FF502 separately because my supplier didn't carry the FW. So still worked just fine, I replaced my FW bolts with WRX ones from 06 just in case they were different lengths.
I noticed a strange rattle though when you're in neutral, give it some gas and watch the revs come down around 1200RPM there's a rattle. Did anyone get this too?