Removal of Heater Pipe Return and Feed assemblies

[Varick106]

Anybody have any experience removing the Heater Pipe assemblies without pulling the engine? The return pipe assembly bolts are visible from the top. I can't see the feed pipe bolts from the top or bottom. also, the sec223 pipe assembly has been disconnected from all water hoses and bolted connections, but cant seem to snake it out, any suggestions?

[itsa300zx]

Never tried and not sure if even possible as the bolts are horizontal facing the firewall (feed tube right side). It's also hidden behind the EGR valve. MIGHT be doable with transmission removed. Good luck if you try.