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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They're the ones offering the 5 year/60,000 mile warranty, so to them it's about RELIABLE excellent performance and fuel economy. They always leave some cards on the table, hence the tuner and aftermarket parts scene.