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Title: dual exhaust Post by: 98 328i 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.
Title: Re: dual exhaust Post by: DeanP 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.
Title: Re: dual exhaust Post by: 98 328i 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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