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Originally Posted by fliprayzin240sx
Better timing/fuel curve, higher or no rev limit, no speed cuts at 120 mph, tuned for higher boost *more than likely 14 psi*. Down side is always remember that its tuned for japanese 100 octane, piss water 91 octane sucks
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Japan has 100 and 95 octane gas cause they only use RON to rate their gas. We however use RON+MON/2(on every gas pump). 100 Japanse octane is closer to our 93.