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Flowmaster Street Performance Mufflers Super 50 Series Muffler - 8524553

  • $90.61 - $453.95  List Price
  • $152.95
  • What Do You Drive?


  • Part Size:
    2.25" inlet/3" outlet
  • Style:
    409 Stainless Steel
  • Part #:
  • Tone: Moderate
  • Muffler body dimensions: 5" tall x 10" wide x 17" long
  • 2.25" Dual Inlet
  • 3" Center Outlet
  • Finish: Silver
  • Warranty: Lifetime Limited

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Flowmaster Street Performance Mufflers Part #8524553 Customer Reviews

Average Rating

4 Customer Reviews

Super 50

Reviewed by Jeremy H (NEWNAN, GA) Reviewed for a 2015 Toyota Tundra — May 14, 2019 6:46 AM

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This had just the right sound for my truck. Aggressive but not too noisy.

Moderate Rumble

Reviewed by Chris F (LITTLE HOCKING, OH) Reviewed for a 2012 Nissan Titan — Jun 21, 2015 7:35 AM

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So far, so good! I was initially concerned about the db level that I would hear in the truck. The rpm range is limited for optimal rumble range for my Titan to be around 1500-2500. That is just what I was hoping for from my research. I really have not noticed any fuel rating increase as of yet. However, that is hard to judge due to the fact that I tend to stay in the rumble range when applicable.


Reviewed by john r (DAVENPORT, IA) Reviewed for a 2000 Nissan Pathfinder — Mar 09, 2015 8:51 PM

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1 of 1 people found the following review helpful.

Sounds awesome and I get better mileage very happy 2000 Nissan pathfinder

Series 50 Dual in/Single out

Reviewed by Hans D (Swanton, OH) Reviewed for a 1997 GMC C/K 1500 — Oct 24, 2012 5:59 AM

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4 of 4 people found the following review helpful.

The over-all construction and appearance of the muffler is standard Flowmaster - Excellent. This 50 series muffler is quieter than I expected. It sounds stock.