Can I Wire A Tune To Touchscreen Stereo?

74stang2togo said:

The only tuners I've seen that let you change things while driving have been for diesels.

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...and there's no reason in the world to need to do this. Generally, the tune that provides the best fuel economy also provides either the best or 2nd best setup for power production.

The common denominator here is emissions. Factory tunes balance emissions and performance. After-market tunes typically leave emissions considerations on the table short of intentionally harming OEM equipment such as catalytic converters. This is why you see varying tunes for car with and without catalytic converters.

Additionally: Switching tunes on the fly is very unimpressive when the result is 15ish HP (depending on fuel). It's not like ascending to Super Saiyan or anything.