Ok I dont get what your saying then? In one post your questioning the people on here telling you to get a tune. Then you say that that most factory tunes can be improved? Wouldnt that normally go hand in hand? Why question it if you agree with it?
You would be surprised but I doubt the systems on this car vary all that much from the systems on that MR2. This car under load uses the MAF to determine how much air its sucking in and then injects what it deems to be the correct amount to give you the desired AFRs. Change anything about that system and you influence its outcome.
Higher end (and newer) cars will always run closed loop and thus they use the factory O2s along with the MAF to work together to get you very close to your desired afrs.
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