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Dynomax 21172 Commercial Vehicle Muffler Review

2

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Poor

Revainrating 2 out of 5  
Rating 
2.0
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Details

BrandWalker
MaterialAlloy Steel
Item Dimensions LxWxH23.5 x 9.5 x 9.5 inches
Item Weight5 Pounds

Description of Dynomax 21172 Commercial Vehicle Muffler

Manufactured from aluminized steel for durability. Designed to help ensure long service life. Engineered to reduce in-cab and exterior engine noise. Offered in a variety of styles, sizes and materials for your installation needs. An economical replacement for the original equipment part.

Reviews

Global ratings 2
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Type of review

Revainrating 2 out of 5

Useless Muffler Ruined My Car

This muffler did nothing for my automotive performance... Through trial and error I found that it even decreased my car`s power. The only good thing about it is that it was easy to install. Save your money and invest in a better quality muffler..

Pros
  • Easy to install
Cons
  • Decreased car's power

Revainrating 2 out of 5

Not quite what I expected. Be warned

If you are purchasing this muffler expecting it to have a perforated core that is fiberglass filled throughout like ALL other Ultra-Flo mufflers, please note: this is not the case. t. This silencer is one of the strangest I've ever seen. At both ends of the muffler, just inside the intake ports, is a short perforated section, maybe 4 inches long or so. These sections are surrounded by fiberglass padding. Aside from that, however, it just opens up in the middle of the muffler. into a very large…

Pros
  • Exhaust Systems and Parts
Cons
  • Volume