I've been doing some testing on wifi and Exploud- unfortunately has been a little underwhelming. I was expecting something that would be a possible OU candidate, although most likely high end UU.. I think he'll probably become a UU, but not a top pick for that tier.
Some points I will make however-
-With 252hp/252 SAtk he's surprisingly bulky, he can go toe to toe with most weakened pokemon thanks to that.
-Item choice is actually hard on him, Life Orb is probably my #1 atm, although both Assault Vest and Choice Specs provide some useful options.
-If he had any resistances he'd be so much better, even with an Ass Vest he's not easily switched in, which is a pain- saying this however not much will want to switch in to him either.
-Bulldoze provides an interesting option, I've been using it in my filler 4th slot (over Ice Beam) and it allows him some added utility.
Food for thought.