I bought the aeroquip SS hose and fittings from Racer Parts Wholesale and had good service and quality parts. Putting the lines together with the Koul Tool was easy, but it adds expense for a one off assembly. I did it because I'll probably be doing this more than once. The SS line is rated to 1000 psi and 300F (constant). Track tested and approved.
The socketless is rated to 250 psi which in theory is above the Z's bypass pressure of 150 psi but given the issues some had with fittings separating I think a little extra headroom provided by the SS lines is a good idea.
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