3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

Engine Noise

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Old 11-30-2004, 09:35 AM
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Engine Noise

Seams to be alot of talk about "noise" on the board. My 2003 555
has gotten louder with time. Hacking off the muffler didn't help either. However, I have heard a couple of the 05 units and I can say for sure that mine was never that QUIET! Plus that cat. in the exhaust sytem makes them smell like a gas rig. Any other comments?
Old 11-30-2004, 12:43 PM
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Add some Cetane boost and it will quiet down nicely
Old 11-30-2004, 01:05 PM
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Not like the 05's
Old 11-30-2004, 08:03 PM
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Mine has got a tad louder, enough for the wife to notice. I was @ a light today and the GEN II pulled up and I said now that is a diesel . My wife looked @ me like I was crazy and said mine better not get that loud Too me, the clatter is a sound of authority. I think by adding a cat on the others, muffled them a bit. Glad I didn't get one, but we will eventually all have them.
Old 11-30-2004, 08:19 PM
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When I got about 5K on her she did get a slight bit louder...sounds like a diesel now.
Old 11-30-2004, 08:34 PM
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Mine is louder now also, I have 8600 miles on it now. I like the sound!
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