Have 4 inch now - Ford Powerstroke Diesel Forum
6.7 Performance Parts Discussion 6.7 Performance Parts Discussion

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post #1 of 11 Old 10-31-2012, 01:55 AM Thread Starter
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Have 4 inch now

Would i benfit from getting a 5 inch exhaust? I have magnaflow now with a mini maxx and delete. Sound and power?

2011 Lariat.6 inch on 37's, dpf/cat delete, mini max and magnaflow.
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post #2 of 11 Old 10-31-2012, 02:37 AM
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Only real difference between a 4 and 5 inch exhaust is the 5 inch is typically a deeper tone. Performance wise, you will not notice any difference

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post #3 of 11 Old 10-31-2012, 02:17 PM Thread Starter
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So is it a waste of money?

2011 Lariat.6 inch on 37's, dpf/cat delete, mini max and magnaflow.
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post #4 of 11 Old 10-31-2012, 03:08 PM
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Its not a waste if you want the deeper tone a 5" will give you. If you are doing it for performance than yes, it would be a waste. 5" looks and sounds great though, you wont be disappointed.



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post #5 of 11 Old 10-31-2012, 03:12 PM Thread Starter
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Anyone want a 4 inch magnaflow system at a steal?

2011 Lariat.6 inch on 37's, dpf/cat delete, mini max and magnaflow.
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post #6 of 11 Old 10-31-2012, 03:26 PM
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How much do you want for it
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post #7 of 11 Old 10-31-2012, 03:32 PM Thread Starter
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Pm me an offer has 5k miles on it.

2011 Lariat.6 inch on 37's, dpf/cat delete, mini max and magnaflow.
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post #8 of 11 Old 11-16-2012, 06:59 AM
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I know I'm out of my realm on this one, but would the 4 inch even match up to a 7.3 ? Just curious as ive been looking for a 4in.

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post #9 of 11 Old 11-16-2012, 07:04 AM
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My EGT's nerver get over 1150 with the 5 inch flopro and that is pulling an 8k Lbs boat
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post #10 of 11 Old 11-16-2012, 07:09 AM
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Your 4" exhaust performs better than the 5" until you start going for BIG numbers. With standard tuning and deletes, your 4" will technically be a better route, unless you want more rumble.


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