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      01-20-2020, 05:53 AM   #231
D CHOI
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Drives: 2017 BMW M2
Join Date: Sep 2016
Location: Las Vegas

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I tried stage 2 91 for the first time and I noticed the cold start is muffled. Before the flash I custimzed the settings prior knowing stage 2 has cold start off by default, so I turned it on (OEM). I do noticed it's muffled and also when driving too somewhat.

I've been mixing 100 octance to achieve 93oct gas recently so I've been moving up slowly on the map ladder. I was on the stage 2 ACN 91 with 93 gas prior and my cold start was fine and car sounded great.

I also noticed the stage 2 ACN 91 it doesn't show u need downpipe+FMIC. But the regular stage 2 91 states that u need. I do have both and I'm not sure if its the stage 2 91 that is making my cold start muffled. Perhaps this is why by default they code it off?
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