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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > 2007 E92 & 2009 E90 sound question???



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      07-10-2012, 10:55 PM   #1
335REGULATION
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2007 E92 & 2009 E90 sound question???

Recently traded in my 2007 E92 AT for a 2009 E90 MT. Love the new car but sounds a lot quieter....The E92 in sport mode made some burble (if that is a word). The E90 just sounds muted even in first gear and reved... Any ideas as what is the reason for this????
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      07-10-2012, 11:02 PM   #2
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I think you posted on the wrong section, but to answer your question, have you done the golf-tee mod? It would make it a tad louder
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      07-10-2012, 11:05 PM   #3
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Have not done the golf tee mod on the E90 or did it to the E92. Could it be programing by BMW on the new car???
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      07-10-2012, 11:38 PM   #4
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Wrong section, '07 E92 + the '09 E90 are both the N54 motor.

IIRC, the E92 exhaust system has an X-pipe from the factory while the E90 does not. The X-pipe will accentuate the exhaust note, which explains why WOT the E92 was louder

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      07-11-2012, 05:58 AM   #5
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I just noticed this is this is the N55 section. My bad. One last question: IIRC???
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      07-11-2012, 08:37 AM   #6
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Originally Posted by 335REGULATION View Post
I just noticed this is this is the N55 section. My bad. One last question: IIRC???
If I Remember Correctly
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      07-11-2012, 10:02 AM   #7
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Thanks!
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