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I hit a 15.4 with aem cai, thermal exhaust, and stock tire pressure.
I guess the point to lowering your pressure is that you can launch at a higher rpm, thus giving you a more powerful launch. In all honesty I get a damn good launch with stock psi at 4 grand, by the time my tires catch I'm at 5 and then vtec :-)
But if i could launch at my vtec point or above, it would definatly cut down on the excessive wheel spinning because of the huge power spike at vtec engagement.
-Greg P
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