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Old 01-25-2013, 12:43 PM
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SD Z4MR SD Z4MR is offline
(formerly SD 335is)
Location: San Diego, CA
Join Date: Jan 2011
Posts: 4,319
Mein Auto: '06 Z4 MR | '11 335is E92
Originally Posted by vst335is View Post
335IS is different
Please explain what you mean by this statement. As far as engine performance, there is nothing different about the N54 engine between a 335is and a 335i except that BMW has increased the boost slightly to produce an additional 20 HP, plus the additional 7 second torque boost, all done with the ECU. It is the same physical engine, the only difference is in the ECU.

P.S. on our 335is the letters are in lower case.
- Tom
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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