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BMWsport.Network Forums > the Tech Lounge > 3 Series > Topic: dual exhaust
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98 328i
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« on: Tuesday, October 24, 2006 - 12:41 AM »
i have a 1998 328i. since there is already twin exhaust pipes, would it help or hurt performance to have 2 mufflers? the only upgrade i have is a cold air intake.
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« on: Tuesday, October 24, 2006 - 12:41 AM »
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DeanP
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08 Mazda3 & '06 Toyota Highlander Hybrid
« Reply #1 on: Tuesday, October 24, 2006 - 12:47 AM »
If two mufflers would flow more air it could help, but it would likley weigh more.  There are several good tuned exhausts for your car with a single muffler.
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« Reply #1 on: Tuesday, October 24, 2006 - 12:47 AM »
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98 328i
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« Reply #2 on: Thursday, October 26, 2006 - 12:14 AM »
more airflow doesnt always help. with some engines you can have to much airflow and it can hurt performance. i was wondering if anyone has tried it.
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