stock TRD S/C at 7PSI will get you about 200WHP. Up the boost to 9 PSI and you get about 220WHP. Change the exhaust and intake and ya can get another 10-15WHP. The Greddy Ultimate actually does not do much at all for performance gains at this point. It is just exta insurance from going too lean and smooth out the power band. The TRD maps are pretty darn accurate at getting usable power that is safe. Going above 9PSI will require some type of e-management.
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