I want to put a Kenne Bell on my '01 Cobra, but the half shaft situation worries me. I seem to be reading about more than a few '03 Cobras running 500rwhp. Can the '03 half shafts stand up to such abuse? Basically, could I just upgrade to '03 shafts, or do those 500rwhp '03's need to upgrade to aftermarket half shafts too?