I picked up a used fmf system this week. I wanted the turbine core 2 silencer for the SA, but it also had a pipe with it. I am just wondering how I might identify the pipe. The seller thought it was a sst, but it doesn't have the sst dealywhopper on the pipe. It is painted black, and it has the fmf tag welded to it. It seems like it is quite a bit heavier than my '06 pipe. The weight makes me think knarly, but the welded on tag looks like the factory fatty. Can you 2t brains help me out?