7500k is already pretty high for a 3.7L v6. I'm sure it's built tough, but that is alot of mass moving at a really high velocity. There is always a factor of safety wth these kinds of things, but only nissan knows how much.
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2012 Mercedes C63 AMG P31 Sedan, ROW, aFe, Eurocharged Dyno Tune. 438WHP/415WTQ
2010 SOLD: 40th Anniversary 370z
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