Don't go lower than a 180, and buy it from Ford. Stant sucks, and Ford is the only place I know of selling the correct t-stats (with the little bobble head bleeder that everyone calls a small bypass)
Ford OEM 180. With winter coming, you might want to get the correct t-stat instead (Ford OEM 192)
Good time to buy a new cap, too.
Take care
~Chris
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MustangNet
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