hmm, I have not yet measured the hose or radiator diameter.. they eyeball the same however.

as far as auto trans lines -- don't they operate well in excess of 100psi? I was figuring I'd have to run some fairly serious steel braided lines and nifty high-end fittings.

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1992 850i 6 speed
1991 M3 S54B32 swap
2007 328iT/6 RWD sport wagon
1987 325E 330iZHP engine swap
2004 Vespa 200GT
1976 W115 240D getting a much bigger engine. 5.5L
1997 R129 SL600 5AT