It's hit or miss on OEM replicas.
They do weigh more... 3 or 4 lbs... that isn't a BIG deal. But, they seem to take a lot of wheel weights sometimes, and there are also some issues with caps flying off from time to time.
But, you could have zero issues.... and they are priced right for sure compared to GM!
Personally I would dismount your tires and have your chrome wheels powdercoated any shade of gray you want.:thumbsup: