[geshaghi]

Yes $400 is low, but this doesn't seem to be an area where 50% of list (especially ERP list) is applicable. Search is your friend.

964 lines and cooler for $650: http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/461831-964-oil-cooler-lines-thermostat.html

Radiator style cooler with tank, lines, etc for $1000: http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/662235-oil-cooler.html

Oil cooler system for $950: http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/662498-oil-cooler-system-950-a.html

Another one: http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/651240-fs-84-89-carrera-oil-cooler-hard-lines-thermostat.html

Complete system with tank and trombone cooler for $550: http://forums.pelicanparts.com/porsche-911-used-parts-sale-wanted/645152-complete-oil-tank-lines-termostat-cooler-78-a.html