6.4 dpf delete pipe vs. full aftermarket exhaust - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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Old 03-08-2013, 10:22 PM
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6.4 dpf delete pipe vs. full aftermarket exhaust

Wondering if anyone knows the difference in mpgs with just deleting the dpf vs. a full exhaust replacement. I'm not too concerned about adding crazy power, just want better mileage. I prefer the delete pipe based on it being cheaper, just curious if the full exhaust replacement would add more mileage. I will be installing a mini maxx and s&b intake as well. Any help would be appreciated. Thanks.
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Old 03-08-2013, 10:40 PM
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6.4 dpf delete pipe vs. full aftermarket exhaust

I didn't notice any mileage difference. It really won't make much difference as the DPF is the restrictive part of the exhaust. The muffler really isn't a muffler, more like a resonator. If you want the cheapest option, just the delete pipe. Full exhaust is basically for sound.


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Old 03-09-2013, 10:11 AM
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Quote:
Originally Posted by mhuffman85 View Post
Wondering if anyone knows the difference in mpgs with just deleting the dpf vs. a full exhaust replacement. I'm not too concerned about adding crazy power, just want better mileage. I prefer the delete pipe based on it being cheaper, just curious if the full exhaust replacement would add more mileage. I will be installing a mini maxx and s&b intake as well. Any help would be appreciated. Thanks.
The tuner+Delete pipe+intake is what is going to get you the mileage gains. The difference between just the delete pipe and a full exhaust is negligible.
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Old 03-09-2013, 10:42 AM
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I have a delete pipe only with factory tail pipe in place (i did modify the muffler so it is a total straight pipe) but I did it for cost. Like others have said, the 6.4 isn;t that loud of a truck and the only difference between pipe only vs full exhaust is sound. Until you get into making big power beyond just tune and exhaust
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