Thread: e39 m5 vs e46m3
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Old 08-09-2013, 12:03 PM   #9
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Every car dyno's lower at the wheels than what the manufactures rate at the wheels. S52s dyno 200-220whp. S65s dyno 330-350rwhp.

Without comparing before and after on the same dyno, dynos are lame. All dynos read different.
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