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๐ŸŽ๏ธ dynomax ultra flo 17221: enhanced exhaust muffler performance logo

๐ŸŽ๏ธ Dynomax Ultra Flo 17221: Enhanced Exhaust Muffler Performance Review

4

ยท

Very good

Revainrating 4 out of 5ย ย 
Ratingย 
4.0
๐Ÿ”Š Exhaust Systems & Parts, ๐ŸŽ๏ธ Performance Car Parts & Accessories

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Details

BrandDynomax
Item Dimensions LxWxH20 x 10.5 x 5.24 inches
Item Weight10.7 Pounds

Description of ๐ŸŽ๏ธ Dynomax Ultra Flo 17221: Enhanced Exhaust Muffler Performance

PREMIUM ACOUSTIC CONTROL -- Exclusive Continuous Roving Fiberglass (CRF) technology absorbs unwanted interior resonance while maintaining a deep performance tone. SUPERIOR PERFORMANCE -- Straight-through design ensures unrestricted exhaust flow and reduces back pressure; dyno proven to flow up to 2,200 SCFM. ENGINEERED TO LAST -- Stainless-steel construction with a micro-finish for lifelong protection and 100% welded design for maximum durability. FLEXIBLE SOLUTION -- Customizable design offered in a variety of styles and sizes for universal fitment (may require specialized fabrication and/or welding). SPECS -- Available in a variety of body diameters; 2-in. to 4-in. inlet/outlet configurations; see product specifications for more information. PERFORMANCE UPGRADE -- Use premium DynoMax accessories when installing Ultra Flo Welded mufflers for a complete exhaust system upgrade.

Reviews

Global ratings 4
  • 5
    3
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    1

Type of review

Revainrating 5 out of 5

Hoarse at 2500 rpm. Top quality parts and accessories

were on 4 of my machines), but the pair I bought had an awkward rattle at 2500rpm. Contacted Dynomax and haven't heard a response yet.

Pros
  • FLEXIBLE SOLUTION - Customizable design available in a variety of styles and sizes for versatile applications (special fabrication and/or welding may be required)
Cons
  • Not bad but...

Revainrating 5 out of 5

Good quality, surprisingly quiet, at least when new

This isn't my first Dynomax weld muffler so I knew I was getting a good product. It's surprisingly quiet compared to the Flowmaster it replaced. The difference is HUGE on my TBI 350 K1500. Your results may vary.

Pros
  • SPECIFICATIONS -- Various case diameters available; 2" up to 4" input/output configurations;
Cons
  • It's ok

Revainrating 1 out of 5

Stainless steel and woofer at an affordable price!

Great sound and great muffler. Dynomax Ultraflow gives you great, deep sound with no squeaks. The internal drone was very minimal in my setup, which included headers, no catalytic converters, and a 3-inch single exhaust.

Pros
  • INCREASED PERFORMANCE - Use quality DynoMax accessories with Ultra Flo Welded mufflers for a complete exhaust system upgrade.
Cons
  • Not sure.

Revainrating 5 out of 5

Great sound with no hum

They are nice, I have a small block 400 with a soft cam in 63 Nova SS, they sound amazing, I had hooker areo chambers, the drone was awful, they don't have a drone with me side pipes, also good quality. I would wholeheartedly recommend them for an old street car where you want a raspy sound with no rumble.

Pros
  • SUPERIOR PERFORMANCE -- Straight-through design provides unrestricted exhaust flow and reduced back pressure; Dynamic flow proven to reach 2200 scfm
Cons
  • Something else