im gtting a reiger rear diffuser for my bravo which will mean i have the reiger front splitter, abarth skirts and reiger rear diffuser, should i smooth in the rear diffuser?. where i live are alot of speed bumps and i dont want to get it smoothed in for it to see a speed bump and split the filler, should i just get it sprayed and put on or smoothed in aswell?. :s i dunno.