Could you detail your thoughts a little more? From my eyeballing, it look like the signals would sit above the widest part of the cone-tip, of the round pipes. The center line of the signals is in line with the center line of, what's left of, the sub frame. I think they would clear, but they would sit very very very close. As a result I'm concerened about heat damage.
Are there any side shots of the conic cans, like the one of the round cans? From the other shots, it seems that the cones are shorter. But all the current photos are all 3/4 angle shots and it's hard to tell