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Larger Exhaust and noise
ISurvivedNMU I have the DPPI cat back dual set up on my 04 and there is zero noise difference in the cab. Now when you get on it with the Windows down it sounds like a big block with a serous growl. Put the windows back up and its back to normal Hope this helps One of these days the...- YODA
- Post #15
- Forum: 6.0L PowerStroke Power & Performance
