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Magnaflow Performance Mufflers Part #12279 Customer Reviews

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4 Customer Reviews

Magnaflow Stainless muffler

Reviewed by Steve L (Sullivan, MO) Reviewed for a 1997 Ford F-250 — Jun 30, 2016 2:56 PM

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I narrowed down the list of mufflers to two (2) for my Ford 460. The first was a Gibson MWA. Nice muffler - but too loud. I settled for the Magnaflow. Once the exhaust was installed with a rear-exit tailpipe, the 3"in/3" out centered muffler had a low-rumble with no indication of resonance inside the cab, even while downshifting from a higher rpm range.

Great sound!

Reviewed by Colby H (GRAND JUNCTION, CO) Reviewed for a 2014 Ford F-150 — Jan 05, 2016 9:54 AM

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I can barely tell any difference at idle, which is nice! But at full throttle, has a great note. I did leave stock resonator and there is a small amount of drone. But very happy with it. I would buy again, and highly recommend to anyone,

great sound

Reviewed by Ronald G (LATROBE, PA) Reviewed for a 2015 Ford F-150 — Dec 06, 2013 4:26 AM

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1 of 1 people found the following review helpful.

Installed on my 2011 f150 , 5.0 v-8. Installation was o.k. just had an issue with inlet size , factory exhaust was 23/4 in, 3 out, the muffler is 3 in, 3 out, but made the adjustments, and very pleased.

muffler change out

Reviewed by mike c (Wakefield, MA) Reviewed for a 2004 GMC Sierra — Jun 29, 2012 7:39 AM

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0 of 1 people found the following review helpful.

very easy to install, only thing is they dont expand the inlet which the pipe from catalytic converters would tie into. ( inlet of muffler) other than that sounds niiice! not too loud but has a real nice growl

Magnaflow Performance Mufflers - 12279

Center Inlet / Center Outlet - Oval Muffler
  • $121.21
  • 1-Year Lower-Price Guarantee
  • Free Shipping
  • Ships By 8/21


  • Part Size:
    3.00" inlet/outlet, 5" x 8" x 24" body
  • Color:
  • Part #:
  • MagnaFlow Part # 12279
  • Center/Center
  • 5" Body Height
  • 8" Body Width
  • 24" Body Length
  • 30" Overall Length
  • 3" Core Diameter

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