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Roman, I sent you an email re our last disagreement--hope it smooths things over.
However, the numbers are what they are. You can go to TAPS website and check out their claims of power for each Stage of mods. It is clear that to get the S4 from its stock performance to 4.2 seconds to 60mph (if that's possible) would require the Stage III modifications. $8k and bye, bye warranty. This includes two new bigger turbos and cat removal.
Great car and I would like to have one. But, if Roman loses to a chipped S4 at any speed over 40mph he needs to go to a BMWCCA driving school. At worst, they would be dead even.
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