[kwmech]

Nothing a 6 point swivel socket won't remove. By the way, that intake is prone to cracking in the heat cross over. It also know for caking up oil under the sheet metal plate protecting the cross over underneath. Take a small flat chisel and lightly tap the edge of the rivets out, then remove the plate for cleaning and check for cracks at the same time. Reinstalling the plate you can either thread the holes and use some small screw with loc-tite or jb the rivets back in.. Also check for a check where the large secondary holes are, sometimes a crack will manifest itself all the way to the top