Exhaust: 01 7.3 - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 03-05-2013, 03:17 PM Thread Starter
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Exhaust: 01 7.3

right now i have a 4 inch straight pipe turbo back to a 5 inch tip. will i gain a whole lot more with getting 5 inch exhaust to 7 inch tip or would i be satisfied with a 6 inch tip for the 4 inch?
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post #2 of 3 Old 03-05-2013, 06:10 PM
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I'm not 100% sure on this but I'm pretty sure you are limited to a 4" downpipe from the turbo. I don't think the gains would be much different going from a 4" to 5" but exhaust flow would be better.
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post #3 of 3 Old 03-05-2013, 10:26 PM
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You will not see any difference between the 4" and 5" other than sound.

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