Lowers are what go from the upper fairing to around the bottom of the engine, totally enclosing your engine. If you look at my avatar you can see where the standard fairing stops. I've got a belly pan fitted beneath the engine. As I say, non of the fairing is standard Sv. IMO at least. Presumably racing plastics.
You might get more response to this thread if you posted in the Tweaks and Tuning section.
