Most likely they're pretty close. If the manufacturer has never had one in their building, they can't state for sure that they will fit. Most subframe connectors will require notching the floor a little bit anyway. If it was my car, I would do it.
__________________
I'm probably just screwing with you, so please don't take it personal.
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
Threaded Mode