I'd add a diff cooler too if you have a LSD (sport). You can make one for about $500. Lots have been scared when the OEM LSD slips, locks, etc and it surprises you. Doran also posted within 3 laps he's running 300 degrees and Megan370 has blown 2 or 3 of them. I'd bet the OEM isn't that bad if you could maintain below 250 temps and let the oil do its job properly instead of breaking down.
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13 370z-
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