I see some FPV owners out there are making some heavy mods to their FG F6's, and discarding their stock parts. In particular I've seen someone selling a stock F6 full exhaust system and I'm wondering whether, if I fit it to my FG Sedan XR6 Turbo, it will make much difference - I.e. is the F6 system freer-flowing than the stock XR6 Turbo system? I wouldn't bother if it was just for the sake of the FPV F6 tip, nice as it is....