[Supras] coolant pipes under exhaust

[Peter]

Supras-
While Im still waiting on some parts to finish up my turbo upgrade Ive been contemplating rerouting the coolant pipes away from under the exhaust of the 7m. The heater hose feed pipe seems easy enough to route, just go to the pass side of the turbo. The return hose will take a little bit more thought to make it practical. My real question is has anyone else done this and found it worth the effort? I dont like the thought of the water lines picking up all that heat from the exhaust but I dont want to reinvent the wheel either. Do you think itll make the cooling system more efficient or at least less prone to the dreaded bhg?
Ideas welcome.
Thanks