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10-25-2007, 01:35 PM | #1 |
Half Man, Half Amazing
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Helping a friend - Exhaust Bypass Valve
I own a 335 E92..he has a Z4M and needs help finding electronic exaust bypass valve. Does this exsist? Or am I on a wild goose chase.
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10-25-2007, 02:42 PM | #2 |
Major
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10-27-2007, 01:09 PM | #4 |
First Lieutenant
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Bear in mind that he will LOSE power by bypassing the exhaust. You can only increase flow a little bit without the DME panicking into safe mode and retarding the engine. So far I have not found any software that will fool the DME.
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10-31-2007, 01:07 AM | #6 |
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-Because the O2 sensors on BMWs also measure impulse speed. If the exhaust is flowing too much faster than expected, the DME starts turning down power. It is VERY irritating! Simulators could be a solution, but I haven't researched them enough to make any recommendations.
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