How Long Will It Take to Break In a MagnaFlow Muffler?


The muffler on your car lessens the sound emitted by the exhaust. MagnaFlow mufflers, a popular brand, help deepen the tone of the noise that the exhaust makes.

Breaking-in Time Frame

  • The breaking-in time frame will vary depending on what muffler you have, but the average time is usually around three days. MagnaFlow mufflers are known to drone a bit between 2,000 to 3,000 rpm. However this depends on the pressure in the exhaust system, and after you wear it in, it should quiet down. The deeper the note it produces depends on how high you are on the RPM range: The higher you go, the deeper it gets.


  • Magna mufflers are made out of stainless steel and are all lap-joint welded. MagnaFlow also offers a lifetime warranty on its mufflers.


  • MagnaFlow offers a range of mufflers including: universal mufflers, mufflers with tips, race mufflers, XL mufflers and glass pack mufflers. The other options for customizing your muffler are: the shape of the muffler, the shine and finish on the muffler and the pipe position.

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  • Photo Credit Auto Exhaust image by Digital Photique from
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