Review on Flowmaster 42543 2.5-Inch Inlet & Outlet 40 Series Muffler by Josh Thompson

Name: Flowmaster 42543 2.5-Inch Inlet & Outlet 40 Series Muffler
Item: Flowmaster 42543 2.5-Inch Inlet & Outlet 40 Series Muffler
Rating: 4

September 15, 2022

Adds a nice appropriate rumble

Overall very happy with this muffler. My F-150 definitely has a more aggressive sound after installation. I expected it to have a deeper, growling sound, especially at idle. It sounds louder but not what I expected, especially from the YouTube videos I watched. Still, it was worth spending a few bucks more for a Flowmaster instead of an OEM spare.

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