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Disabling fake exhaust noise

joeram57

New Member
Joined
Jul 31, 2026
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1
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Location
Dallas Georgia
First Name
Joseph
Vehicle(s)
2021 Mustang Ecoboost Premium
Hi. Brand new here...

I have a 2021 ecoboost converter. Google told me I could disable the fake engine noise with forscan. Didn't work...

Now it tells me it's doesn't work on a 2021, particularly a convertible...

Has anyone been able to disable it on a 2021 and being a convertible?

Thanks in advance,
Joe
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delz05

Well-Known Member
Joined
Mar 29, 2026
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Location
Boston Area
Vehicle(s)
2015 Mustang GT Convertible
On my 15 GT convertible there was a sound tube in the engine bay. That was part of the airbox system. I removed all of that when I did the GT 350 air box swap. It ran from the front grill to the firewall. After removing it, I plugged the firewall hole with an inch and a half rubber plug.
 
 








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