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Old 04-15-2011, 08:25 PM
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SD Z4MR SD Z4MR is offline
(formerly SD 335is)
Location: San Diego, CA
 
Join Date: Jan 2011
Posts: 4,292
Mein Auto: '06 Z4 MR | '11 335is E92
I was just reading a thread in the last couple of days where this was debated. I think it may have been an older thread on e90post.

Someone who had them up both up on a lift commented that their labeling and markings on the exhaust system were different. I believe that someone said that the 335is exhaust has the flapper valve and the BMW PE doesn't. I think that it was said that the BMW PE was louder and deeper. The determination was that they're not the same. But I could be wrong.

But the 335is exhaust definitely does sound sweet! I can't wait, it's just weeks away!
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- Tom
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Mine: 2006 Z4 Roadster (E85) | Interlagos Blue Metallic | Black Extended Nappa Leather | Carbon Leather Trim | Purchased 7/19/12
Hers: 2011 335is Coupe (E92) | Le Mans Blue Metallic | Black Dakota Leather | Dark Glacier Aluminum | 6MT | ED 5/12/11

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