if the body kit is an xe body kit yes if not no it won't because with the xe the bolt strips out of the back so the back of the body kit needs to be open.
The ION XE is much better than the ION as it has BOB, you can get the epiphany upgrade kit for the XE i think, in any case, there arnt many body kits for the XE as i think the EOS is taking a lot of the sales.