Removed the symposer hose finally. Just stick your hand back behind the battery box and you'll feel where the hose is connected to the firewall. The connection is the same as the ones for the evap system. Just squeeze where it's ribbed and tug it off. Then you can pull the hose out of the two clamps, one up front you gotta pry out(4th pic), and one on the back of the battery tray you can just pull out (c shaped). Now just tug the hose off that 90° elbow we unclipped, plug it up with some tape and clip it back on. Done! Not sure why so many people just leave the house there, and why so many companies sell their delete kits with a hose cap instead of a plug for the elbow end or a new elbow that clips in place.