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      02-13-2020, 10:36 PM   #2
SEAT TIME RULES
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Drives: 20 BMW M2C 17 Mazda MX-5 RF
Join Date: Oct 2006
Location: "Get Busy Living, or Get busy Dying"

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2020 BMW M2C  [0.00]
Just buy a AA midpipe. Its good for 10-15 HP and it gets rid of the rasp and increases overall volume about 20%.

I also added Wagners's 200CEL HFC's and that also increased the volume even more. Probably a total of 40-50% louder with the flaps open in Sport +

In comfort mode with the exhaust flaps open its perfect for highway or stealth driving. In Sport, or Sport + it really opens up!
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2005-2006 BMWCCA Boston Chapter president
2004 Mazda Rev It Up Finalist
2002-Present HPDE Instructor