Trying to weasel the new springs from the dealer may work if the dealer is not that smart. The OEM spoiler (at least for the sedan) has the word ACCORD moulded right under the LED. It is in pretty big letters. Also the OEM LED setup is plug and play, most aftermarket spoilers require you to splice into your brake light wires. So if the dealer has any brains, they should be able to easily spot an after market spoiler and refuse to install the springs for you. However it never hurt to try.