Man there sure is a lot of ex-mustang owners here. Smoking the big B.S. pipe of the aftermarket. Heck yes a flexy flyer mustang from 1979 to 2004 required subframe connectors because its frame is the same as this
It was designed to go to the grocery store and back. Not to go drag racing or road racing.
Plus technology and testing at tracks like the 'ring showed OEM's that the cars need to be stiffer from stock.
Subframe connectors were the easy money for the ford aftermarket and they couldn't let it go when the 2005+ came out. So they made some for a car that didn't need it. Greed instead of fact, millions welded more weight onto there cars.
These cars were built so much more stiff then the previous, that even in production before welding the body you could take the car off the line and put it back without checking it before welding.
If a Z28 is good enough to dominate most the tracks and be accepted by the SCCA. Then any camaro is good to go.
Don't buy into the hype or drink too much of the Kool-aid