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      08-25-2013, 04:42 PM   #8
Klepper1
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Drives: 2011 1M
Join Date: Dec 2007
Location: Houston, Texas

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Quote:
Originally Posted by Asbjorn View Post
Congratz!

What are the differences in perceived exhaust sound (volume and quality)? The 1M has a quad exhaust with less restrictive cats etc, but of course only the windows come down. What does it sum up to compared to the Z4 with the entire roof down?
I have an aftermarket exhaust on my 1M so I am not sure the comparison will mean much (Berk resonated mid pipes with a Magnaflow catback). The 1M exhaust is much louder and more raw.
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