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      07-28-2013, 09:23 AM   #1
3rdgear
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hardly any sound from the exhuast

hi guys, my buddy and i both owns a 1m in china and the question is, we can hardly hear the exhuast sound on both our rides. from the clips from you tube, both the engine n exhuast sounds great so i wonder if bmw offer a different settings or some sort to lower the sound it makes to meet the import standard. pls share yr thoughts with me, tks
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      07-28-2013, 10:24 AM   #2
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Huh?
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      07-28-2013, 10:39 AM   #3
3rdgear
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the sound coming out from the exhaust pipes in the stock china 1m is hardly noticable unlike the 1m from the US or anywhere else. my buddy noticed the same thing so we are wondering if the china version 1m exhaust system is different to other countries
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      07-28-2013, 10:42 AM   #4
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Search the forums. It was discovered that 2 of the 4 exhaust outlets are blocked off on Chinese-spec 1M's. A forum member even went so far as to cut open his exhaust to show it. It must be for noise purposes as it would have no affect on emissions.
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      07-28-2013, 11:02 AM   #5
3rdgear
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oh yes i remember seeing that post but didnt know it was referring to the china 1m. what also seems weird is that other stock supercars in china are loud as hell so i really dont understand why bmw had to block 2 of the pipes. is there anyway unblocking them? tks
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      07-28-2013, 11:05 AM   #6
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also does blocking these outlets effect the performance? im not a technical person so kindly educate me pls
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      07-28-2013, 11:10 AM   #7
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Sounds strange, don't seem to have this issue in Hong Kong...
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      07-28-2013, 11:25 AM   #8
3rdgear
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hey SF im from hk too but living in shanghai. yes very weird, i heard china bmw did something to the exhaust system but i wasnt sure what it was n if it is true and if there is anyway i can bring back the sweet sound.
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      07-28-2013, 09:13 PM   #9
3rdgear
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tks Flzrider, i found the thread you mentioned and got all the answers i need.
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      07-30-2013, 03:06 PM   #10
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Quote:
Originally Posted by 3rdgear
tks Flzrider, i found the thread you mentioned and got all the answers i need.
Glad to help!
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      07-30-2013, 09:25 PM   #11
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GET A FULL EXHAUST SYSTEM, problem solved.
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      07-31-2013, 01:21 AM   #12
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It seems to be a spec for the Chinese market (likely for emissions or noise reasons):
http://www.1addicts.com/forums/showthread.php?t=719739
http://www.1addicts.com/forums/showthread.php?t=711749
http://www.1addicts.com/forums/showthread.php?t=714642 (that thread got out of hand)

You could call it some sort of "Tesla tune".
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      08-01-2013, 12:01 PM   #13
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tks guys, im planning to purchase the eisenmann system, as price for ak works out to be us$9,000 here in china, also i heard stock exhaust offers the best pick up speed, do correct me if im wrong
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