The one pictured in your above post is a tall/high hump. Just an FYI: all original/unmodified tall tunnel covers (BBC w/TH400, BBC-SB-I6-V6 w/4 spd. & all SB-I6-V6 4wds.) are a bolt in deal and ARE removable, low tunnels are NOT removeable as they are part of the solid one piece stamped floor pans w/o any bolts seen. Mel