Is it the actual subframe that's collapsing or are the hollow mounting bolts snapping? The 05 Busa I wrecked back in May had all the subframe mounting bolts snapped clean in half, I believe the bolts are designed this way (hollow) so that they break instead of the subframe or the main frame getting mangled & twisted.
Holy crap! this thread is only 9 years old, what are you guys trying to do to me.