Put the liquid wrench on there now, so it can soften that beyatch up a little in the time while you wait, may want to wire brush the threads to make it a little easier to get off too. Use good six point sockets to remove, less likely to round out. If you go with a stock one, wire brush it really well and paint it with black barbeque paint or something and it will hold up better. Also, put anti seize on the bolts when reassembling to make it easier to pull off for the next guy.