ECON Sets the max rev to 4200rpm, Optimize the AFR's for hwy driving. Now that being said I never saw any better MPG over my fully tuned map hwy.
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2011 Brilliant Silver NISMO 370z. #: 0046.
PPE LTH | MillSpec Cats | F.I Exhaust | Akuma Intakes | Rotora 6/4 Brakes
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