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Plenty of T5 and T7 suite "tuners". The problem is how to achieve this.
Saab has already put plenty of time in finding a good MPG and emissions mix. Any leaner and your NOX goes up. You can advance timing a very little but then you risk it being a little harder on an engine.
Due to the the way the ECU works when your just driving and not gassing it the ECU tries to stay at 14.7 AFR. Not a lot you can do about that except just turn that off. But then your car can't make adaptations and try to be more efficient.
You could always take away all the performance turn it into a very low pressure turbo car with a speed limit of 55mph and RPM limit of 4000. Might as well buy a geo then...
posted by 76.22.6...
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