According to APR a stock B8 S4 makes 327hp/327tq at the wheels uncorrected while a stock C6 a6 makes 255hp/299tq corrected. Why is there such a big difference? The factory numbers are only different by 33hp and 10 tq. I realized the numbers for the a6 are corrected but that doesn't make that much of a difference. A stage 1 tuned a6 gets 313hp and 323 tq, not even at a stock s4 level.
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