TOTALFLOW 947 Universal Race Exhaust Muffler - 4 Inch ID | 4 Inch OD

Manufacturer: TOTALFLOW
SKU: 947
UPC: 816264026270

Stainless Steel FinishMay Require Welding JobOne (1) Year Limited Warranty

Availability: Out of stock
Products specifications
Material409 Stainless Steel
FitmentUniversal Fitment
Reversible MufflerYes
Reversal Muffler Configuration | Bi-DirectionalCenter | Center
Muffler TypeMini Race Design
Inlet | Outlet Diameter - Reversible4" ID | 4" OD
Body Size | Shape5" Round
Body Length7"
Overall Length9"

TOTALFLOW straight through performance exhaust mufflers constructed with 409 stainless steel, our exhaust mufflers designed to allow for maximum free flow—and horsepower. Whether you have a true dual exhaust system or not, our mufflers will make you master the flow & the sound of your exhaust system giving you the max dyno results. Our bullet race exhaust mufflers, resonators and glasspacks can be used off road & can be a great addition to your on road super custom project. TOTALFLOW mufflers feature a straight through, perforated 409 stainless steel core wrapped with 430 stainless steel mesh acoustic material, making it the ideal mufflers for your next custom exhaust project, allowing for a free flow through the pipe with very little restriction.

  • Made from Heavy Gauge fully welded 409 stainless steel muffler.
  • Free flow muffler, straight through perforated stainless steel core wrapped with stainless steel mesh.
  • Minimal decibel reduction over open headers.
  • Perfect for any custom exhaust project.
  • Compact size - will fit anywhere.

Safety Warning

TOTALFLOW® Recommends the installation of this product at professional facility.

⚠ WARNING: This product may contain chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. For more information please go to

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Good quality stainless
Fit great on my Duramax straight pipe exhaust it is 4" i.d. on one end and 4" o.d. on the other
| 3/7/2020
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Great sound
I get 2 of the 7" and i put it on a chevrolet silverado and the sound its great the sound it's so diferent from all the others brands. I really recommend this muffler. Cheap and amazing.
| 12/12/2019
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Great price for the product
Exactly as described. Worked perfect for my DPF removal.
| 10/26/2019
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Great product for greater price!
Exactly as described, all measurements were accurate per the description. Will order again when needing more.
| 10/24/2019
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Appears to be made well. Haven’t installed it yet but happy so far
| 10/13/2019
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Nice race Bullet style muffler
Great and lightweight for our race car
| 8/19/2019
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