Most manufacturers are going to be conservative with their ECU maps, to keep as much reliability as possible. I understand this. And I know that I can install a CBE and CAI and the car will run fine. But from what I have been reading (and its a small sample size, I know this), people are quick to suggest a tune with simple mods, and I guess my question is why. I'm wondering if it's due to the ability to tune the stock ECU (in the MR2 world, you can't tune the stock ECU) so easily, or if the ECU is not great at making the adjustments when such mods are added. Does that make sense?
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