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Looking to install OEM active valve mufflers on my 2019 Mustang EcoBoost.

Wondering if the valves opening and closing, thus changing exhaust back-pressure would cause the engine to run lean/rich and do long term harm to my bone stock car.

Long term reliability has priority over sound for me but if it has ZERO effect then I will go ahead and do this.

Thanks in advance

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  • Would the manufacturer have done any testing for this before making it available? – Solar Mike Aug 26 '20 at 10:23
  • Yes but my car’s computer wouldn’t know about the new mufflers since I’m doing it myself. – Ardalan G. Aug 26 '20 at 12:53
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    Cross posted and answered here: engineering.stackexchange.com/q/37357/10902 – Solar Mike Aug 26 '20 at 17:42

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