Your Cart Is Empty
Showing 1 - 4 of 4

We’re sorry. The information you have requested is temporarily unavailable.

Magnaflow Performance Mufflers Part #12589 Customer Reviews

Average Rating

7 Customer Reviews

Exactly what I was looking for!

Reviewed by Jeremy S (SOUTHAVEN, MS) Reviewed for a 2015 GMC Sierra — Mar 05, 2018 8:28 PM

Was this review helpful?
Yes   No

The newer GM trucks have a lot going on with the exhaust, keeping them quiet as can be. I wanted to be able to hear the v8 without it being obnoxious, loud or having a drone at highway speeds. The 22" Magnaflow muffler is perfect, gives a nice deep tone and you can't really tell it's on there until you step on it. Very pleased with the purchase!

22 inch oval

Reviewed by Donald B (PRAIRIEVILLE, LA) Reviewed for a 1988 Chevy Suburban — Jan 11, 2016 5:08 AM

Was this review helpful?
Yes   No

Great sound and quality. Would by again. If you want more quite sound go with the 24 inch.

Exactly what I wanted and expected!

Reviewed by Merlin K (Ogden, UT) Reviewed for a 2011 Toyota 4Runner — Oct 14, 2015 10:14 AM

Was this review helpful?
Yes   No

For my 2014 F150 5.0 I ordered the Magnaflow P/N 53070 with 3 inch centered inlet and 3 inch offset outlet, 5X11X22 inches. I had a local exhaust shop weld it up and they had to add a six inch extension as the huge stocker was longer. With only a few hundred miles on the muffler, it already sounds perfect! I wanted a not-too-loud rumble when the engine had to work, but otherwise pleasant. I got just that!

The Mellow Magnaflow

Reviewed by Donald R (Ipswich, MA) Reviewed for a 2015 Chevy Silverado — Apr 02, 2014 8:25 AM

Was this review helpful?
Yes   No
5 of 5 people found the following review helpful.

I bought #12589 because this Magnaflow muffler is Stainless Steel, has a LIFETIME Warranty for the original purchaser and is known to be quiet 90% of the time which I can say is very accurate. If you want something extremely close to stock noise levels when idling or cruising this is the muffler for you. The only time you hear it is when you are hard on the gas or the rpms sit between 1700 - 2200 while cruising and even then it's a nice mellow tone that is not deafening. Very happy with it.!!

Best Muffler....Period!

Reviewed by Bill S (Arlington, WA) Reviewed for a 2013 Dodge Ram — Feb 24, 2014 5:00 PM

Was this review helpful?
Yes   No
4 of 4 people found the following review helpful.

The Magnaflow Performance Mufflers have the best appearance, sound and quality of any muffler available. I've run them on numerous vehicles and will always be my first choice.

Exactly what I was looking for.

Reviewed by James L (VIRGINIA BEACH, VA) Reviewed for a 2010 Ford Expedition — Jun 25, 2013 6:17 AM

Was this review helpful?
Yes   No
6 of 6 people found the following review helpful.

Wanted to add a little bit of an exhaust sound to my Expedition without getting the drone that my dual exhaust F150 has. This Magnaflow muffler is the longest one they make to ensure it is quiet on the highway. It has a great V-8 growl on startup and acceleration with no baffled echo like my other vehicle does with it's flowmaster. Top it off with getting the muffler on sale, and I'm a new Magnaflow fan.

Super quiet

Reviewed by Thomas E D (Dallas, OR) Reviewed for a 2009 Chevy Silverado — Aug 02, 2012 7:32 PM

Was this review helpful?
Yes   No
3 of 3 people found the following review helpful.

I ordered a 22 inch magnaflow fitting the muffler dimention that I took off. I was very suprised that how quiet the muffler is considering that it is 3 inch diameter inside all the way thru. Perhaps with some age it will become louder but for now it is a little dissapointing. Overall I am happy with the quality and like having a lifetime warranty.

Magnaflow Performance Mufflers - 12589

Center Inlet / Offset Outlet - Oval Muffler
  • $121.86
  • 1-Year Lower-Price Guarantee
  • Free Shipping
  • Ships By 7/16


  • Part Size:
    3.00" inlet/outlet, 5" x 11" x 22" body
  • Color:
  • Part #:
  • MagnaFlow Part # 12589
  • Center/Offset
  • 5" Body Height
  • 11" Body Width
  • 22" Body Length
  • 28" Overall Length
  • 3" Core Diameter

Have a Question?
Have a Question? Ask a product expert! (800) 874-8888 Live Chat