Anyone Notice Quieter Exhaust On Start Up Recently?

[steveo1960]

I have my AE set for quiet start up mode and it usually is loud for abut 5 seconds or so and then goes quiet.
As of last week, it starts quiet and doesn't return to normal until after a mile or two of driving.
And normal seems quieter as well.
Also, Sport Mode, seems a little quieter although louder than normal. My last software update was Jan 20th, 2025.
I'm kind of hyper sensitive to sounds so I'm reasonably sure it's not my imagination
or that I'm just getting used to the car which is a year old.

Any ideas?

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[NightSurgeX2]

Do you live in an area that's getting warmer the last week or two? Cold starts are always louder the colder it is, and the warmer outside temps can make a small difference

 

[Sofa King]

It's your imagination... couldn't resist... I would definitely notice something like that too... but, mine still starts loud for several seconds then goes to quiet mode.

 

[Sofa King]

Do you live in an area that's getting warmer the last week or two? Cold starts are always louder the colder it is, and the warmer outside temps can make a small difference

That would be my other guess...

 

[steveo1960]

Do you live in an area that's getting warmer the last week or two? Cold starts are always louder the colder it is, and the warmer outside temps can make a small difference

As a matter of fact I do and it has been getting warmer here going into the high 50's instead of the low 20's a week or two ago.

Great observation!
I think you figured it out!

 

[CaesarX]

any way to keep the cold start for more time? Its is not only the active valve... has to be something else... anybody knows what?

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