I know that installing an aero grill on the stock front bumper takes some modification to the grill to make it fit. Does it work the other way around where it would take modifications to the stock grill to fit in the aero bumper? I’m trying to figure out if my stock chrome one will fit.

 

I haven't done it, but I think you would have to do some monkeying around to make it sit flush with the bumper. I think it would be very doable, though: you'd be amazed with what you can do with a drill, zip ties, and high quality glue, Macgyver.