Mpg gains with aftermarket exhaust - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 12-27-2013, 05:26 AM Thread Starter
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Mpg gains with aftermarket exhaust

Hey guys,

I'm looking at upgrading my exhaust to a 4" straight pipe soon. Can I expect any mpg gains from this, and if so, how much?

Thanks!
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post #2 of 9 Old 12-27-2013, 05:42 AM
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Probably not, you'll like the sound so much you'll "put your foot in it" more
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post #3 of 9 Old 12-27-2013, 08:37 AM
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I don't believe there are gains to be had from just an exhaust anyways.
If you were replacing a super restrictive system maybe there would be some gain, but we don't even have a cat to cut out in most 7.3's

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post #4 of 9 Old 12-27-2013, 01:16 PM
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in a word...Nope.
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post #5 of 9 Old 12-27-2013, 04:17 PM
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I like to think there is just to justify spending the money, but in reality it probably hurt mine cause I like how my turbo sounds.

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2003 F250 CCSB 7.3--Gearhead tuned, MBRP 5", 6637, Diesel Site Coolant Filter, 203* Thermostat, ISSPROs, HPx, 5% tint


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winona78 (12-31-2013)
post #6 of 9 Old 12-27-2013, 04:29 PM
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not enough that you would notice. sounds badass though.

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post #7 of 9 Old 12-27-2013, 07:59 PM
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May help EGTs a bit but not mileage.

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post #8 of 9 Old 12-28-2013, 08:17 PM
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Go ahead and do it, you'll love the sound!
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winona78 (12-31-2013)
post #9 of 9 Old 12-31-2013, 08:35 AM Thread Starter
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Love the responses. Thanks everyone!
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