routed mine under, actually i had a parts car, so took the heater hoses off the parts care, and hooked them together to give me plenty of room to run under them. If you look up my thread you can see what I am talking about. This summer going to take them off, have some silicone heater hose gonna use, got some extra long hose so its one piece and nice and new.

97 Talon ESi 14.943@91.35MPH N/A!
"If you need someone to provide an itemized build of materials and a flowchart to walk you through every build-related question you will need to answer at each step of the process, you shouldn't be playing with cars. "-Driggs