Yes, I am nuts
I weighed both front and rear stock 04 mustang bumpercovers, side scoops, hood scoop, rockers, fog lamps, and rear wing.
Then did the same with the Saleen front and rear bumper covers ( with screens) , three piece wing, rockers, side scoops, and c-pillars.
The Saleen kit out weighed the GT parts by 46 lbs.