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6.0L Performance Parts Discussion What has or has not worked for you?

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Old 08-19-2010, 12:18 PM
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exhaust questions

I've heard that strait piping the 6.0 will have a negative effect on MPG's. Right now I max out at about 18mpg, totally stock. (just got the truck recently)

I will be doing the EGR delete, and SCT/DP Tuner custom tuning (econo & towing) nothing crazy.

I intended on doing a cat/muffler delete or 4" turbo back strait.

Is there any truth to the rumor I heard that opening up the exhaust will hurt MPG's on the 6.0?
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Old 08-19-2010, 12:20 PM
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Opening up exhaust on these trucks always increases mileage over stock
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Old 08-19-2010, 12:28 PM
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That's what I expected so I was shocked to hear the opposite......
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Old 08-19-2010, 12:31 PM
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The only reason your mileage might go down is due to NOT being able to keep your foot out of the gas because it sounds soooooo good!
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Old 08-19-2010, 12:42 PM
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Well, I'm 34 years old, and I just got rid of the hot rodded 7.3 non daily driver..... This is my daily driver and I drive everywhere for my job. MPG's are important to me. Any mods I do I want to be solely for fuel mileage.
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Old 08-19-2010, 12:43 PM
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i have done exhaust on cummins duramax and p-strokes. mileage always increases normally
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Old 08-19-2010, 12:47 PM
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I think my cat was plugged a little, so I gained about 1 MPG.
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