Quote:
Originally Posted by Gen
So forgive me ignorance, but I have to ask, if a simple tune can increase engine power a fairly significant amount while increasing MPG, why would Subaru and Toyota have left it as is? There must be some reason. I don't imagine there's a significant emissions difference between stock and flashed. How much does this tune lean things out?
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I think a lot of it has to do with emissions...
Tune doesn't lean the car out except a little but during WOT - but nothing crazy.
-John