I wouldn't worry about it.
But you drive a nice car. If you can afford the tune, it will definitely help and only make the car more enjoyable (as long as a good tuner tunes it).
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2007 350Z HR :: 3.7 Final Drive : Injen Long-Tube Intakes : TurboXS Cat-Back : Eibach Sportline : Enkei RPF1 18x9.5/10.5 +15
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