The V8 springs are NOT recommended on your V6 as it will set it even higher and you wouldn't want that.
As for lowering, eventhough we have a lot of speedbumps here and the car easy gets grounded (due to long nose) i DID decide to lower it.
I used the Eibach Pro Kit which solved the problem quite a bit PLUS it improved handling !
I've replaced my shocks in Favor of the Billsteins and this dropped it even a bit more.
On top of that i also have Ground FX and i YET have to ground the car !!
Granted that i DO take special care and simply avoid certain spots.
That Airdam WILL ALWAYS scrape, even with the stock springs and that's no biggy as it's flexible.
Like i said, i yet have to scrape the nose itself.
Take bumps carefully or at an angle if needed.
Go for it Gerry,