Interesting! I just got done cutting down the top of of my motor mount on the drivers side! I noticed while wrenching my motor mount bolts back down that the mount heat cover had got a little crispy. Removed it and noticed the header resting on the top corner of the mount.....I tried to adjust it, but was not enough so I had to remove the mount and file it down to get only about an 1/8" of clearance......wierd!