i used the side supports but i have another question.. i took the main 9 bolts off where it connects to the block.. but there is a mount on the opposite side of the o2 sensor holding it on.. but i cant seem to get the bolt off.. its a little rusted but ive seen MUCH worse.. ive put all my weight into it an greased an wd40'd the hell out of this thing and it wont budge.. is there somethin i should know about this bolt or bracket or can you just tell me the best way to get it off? thx