Originally Posted by ozinaldo
Without under tray should be lighter, but since it is only sold with under tray and assuming you would like to install that piece to have any probable aero function, that can't be really lighter than stock difuser as a kit, not enough to make any difference anyway.
It is available in matt cf if that matters, looks better than gloss imo, go to their web site for pictures. But that (matt or gloss) also depends your other exterior mods if any and adds to cost too.
Sweet, your car is gorgeous btw wasn't trying to be negative.