01-05-2022, 08:54 PM | #1 |
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How to turn off the catalyst heating?
Hi guys! I'm the happy owner G20 M340i 21year production.
I have catted DP & it sounds perfect in the street, but not in the my underground parking garage, it feels like it's coming from hell. It's funny, but not for my neighbors Someone knows how to remove/delete/disable catalyst heating when starting up the car ? |
01-05-2022, 09:00 PM | #2 | |
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I am flashed and turned my cold start off - it's perfect (for me) |
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01-05-2022, 09:44 PM | #3 |
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Drives: 2020 BMW M340i xDrive
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So the loud cold start is to warm up the cats? I always wondered why it starts up so rambunctiously. I wonder if there's a sensor it's reading to determine when to wind down or if it's set timeframes.
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01-06-2022, 09:41 AM | #4 |
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That comment that it “comes from hell” made me crack up. It’s so true
Enjoy it in all of its glory, man! We won’t enjoy this sound for long. Eventually we’ll all be driving EVs Anyhow, I’m sure that a tuner can tune out the cold start. M Engineering can do it for Porsche, so…
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01-06-2022, 09:44 AM | #5 | |
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The irony being that the tree huggers created a situation where exhausts are now obnoxiously louder than they need to be, LOL
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01-06-2022, 10:43 AM | #6 |
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Exactly. They're now starting to complain about loud exhausts. At least in NY, they're trying to crack down on exhaust noise, stating that it's "dangerous" and "polluting". Whatever keeps pitchforks in the clutches of Karens across the state, I suppose.
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