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BMW 3-Series (E90 E92) Forum
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Tune
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04-20-2021, 09:15 AM | #1 |
First Lieutenant
87
Rep 301
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Tune
I'm looking at buying a 2011 335i that has a tune but the owner does not know which tune. I'm assuming MHD because there is no JB4 wiring.
My concern is reverting back to a stock tune for emission testing. Is it possible to return to stock tune? I would think a DME change would be necessary. |
04-20-2021, 09:55 AM | #2 |
Major
611
Rep 1,272
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MHD can overwrite whatever's there, but be very cautious of a "tuned" car that the owner knows nothing about.
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