[nass]

I could be wrong but the sedans never got anything like that from the factory. You can however get one that's made for it, JL Audio should have one for the sedan. You can also have an audio shop build one for you for any sub you want. If you're bored to can try to make one for yourself... it's not as hard as one may think. Fiberglass the back to fit the curves then MDF for the sides and front.