8-Lug Truck Performance Duramax, 8.1L, and HD tech | Intakes | Exhaust | Tuning | Suspension | Drivetrain

8.1L header question

Old Jul 2, 2025 | 03:41 PM
  #11  
rang-a-stang's Avatar
Staging Lane
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Joined: Feb 2024
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From: Boise, ID
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I just finished building my 8.1L exhaust I mentioned in post #9. Here is how it sounds. No cats, just long tubes, to 3", to X, to duals, two Jones mufflers mentioned above, an elbow and pokes out the side.
Video of my truck running
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