Ron: i got your "package" almost as soon as it came out
and yes. it's a MAJOR difference. im on a stock gearbox, so i'm not quite sidestepping my clutch, but just the feel of the rear end of the car is well worth the $$ spent.
my only complaint/joy is the rear end comes out even easier than before. maybe it's time to bump the cusco swaybar down from full-stiff.