| :Well above typical coolant system pressure All well and good but I know of a few that have had problems with 30R7 going rock hard due to the heat eg [ http://www.aus300zx.com/forum/showthread.php?t=297995 ] For the minimal additional expense it's worth fitting 30R9 with higher temp rating. Or go proper coolant hose J20R3 D3 which is rated to like 150* constant use.
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