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What does the MPPK do?
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07-22-2017, 01:20 PM
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surfcali
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Drives: 2016 M3 Mineral White
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I've had MPPK installed for about 3 weeks now - butt dyno says it did as advertised, 10% more hp/torque. I expected it to be louder, but I guess the stock muffler silences very well. Anyone else only do MPPK without MPE?
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