uh....255-260 is pretty darn high for oil temp, especially with an oil cooler. Definitely will overheat at 70 degrees. Seems like the stock oil cooler is not up to the task.
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GTM Twin Turbo Stage 2|GTR Turbo/Engine Gauges|KW V3 Coilovers|HKS Exhaust|Oil Cooler| Vossen CV1
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