[BluePhoenix]

As long as the order hasn’t been accepted then as long as it’s a factory option you can add it on. But if you can’t add it as an option onto your order at this point then you probably will need to look at aftermarket options later on. You can’t just buy a Dual Mode Exhaust kit from Chevrolet Accessories and have the dealer install later. I think in your case you could probably find nice aftermarket exhaust that would be nice if adding the Dual Mode option to your order isn’t possible.