which is better for fuel mpg - Ford Powerstroke Diesel Forum
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  #1  
Old 10-31-2010, 08:48 PM
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which is better for fuel mpg

which gets better fuel mileage??? straight piped or with a muffler?
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  #2  
Old 10-31-2010, 09:38 PM
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It doesn't make any significant difference. It's all about the sound.
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Old 10-31-2010, 09:40 PM
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i agree.. you prob wont see a diff between either of them...
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Old 11-01-2010, 02:32 AM
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Not much in fuel mileage but my vote is to ditch the muffler
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Old 11-01-2010, 02:42 AM
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worst for fuel is the Cat. Run it over and straight pipe that and your in bussiness.
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  #6  
Old 11-01-2010, 05:36 AM
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Ok yea I had straight pipe no Muffler but turns to many cops heads when I'm coming down the street so I put a mbrp Muffler on that I cut in half n welded together ...so my next question is do you make more boost on straight pipe? I know Turbo cars work that way didn't know if it was the same for diesels?
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Old 11-01-2010, 05:44 AM
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No scrap the cat. I got $125 for my from a local scrap yard.
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Old 11-01-2010, 06:24 AM
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Diesels and unleaded the same... The more in the more out the more on the ground. Lose the cat and get a high flow muffler and your doin good.

Paul
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