LWFL=Lightweight flywheel. When doing the ACT HD clutch a lot of people go with the 06 wrx LWFL. When I got the STI pitch rod and compared it to the stocker I was pissed that it was the same thing only with STI paint on it. But after reading some posts. I guess they use the same mold, but use different materials to make it harder. I guess that it does, because I haven't had any issues with banging.
I'll ugrade tranny and engine mounts when I notice more movement out of the engine.