Thanks GreggPDX, I appreciate your input on the 518. I know what you mean on the bolts...I got lucky and hit someone's K04 rebuild thread on Audizine and learned the tricks of bumping the tabs enough to get a screwdriver under the edge and then use a wrench in combination with a little nudge. At first try, I had a couple of easy ones on each side and decided to do a quick search before what would have been ruined bolts for sure!