muffler or no muffler - Ford Powerstroke Diesel Forum

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post #1 of 33 Old 03-25-2012, 10:47 AM Thread Starter
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muffler or no muffler

Just seeing what you guys think on having a muffer or straight piped, alos 4 in or 5 in a big sound difference or not looking at a flo pro 5in with out muffler
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post #2 of 33 Old 03-25-2012, 11:49 AM
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I'm running 4" turbo back with no muffler. It's quiet with the windows up and you can hear the turbo singing from the drivers seat.

from the outside it sounds a lot like a v8 truck on acceleration.
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post #3 of 33 Old 03-25-2012, 11:53 AM
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Straight piped is the way to go

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post #4 of 33 Old 03-25-2012, 12:07 PM
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No muffler
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post #5 of 33 Old 03-25-2012, 12:09 PM
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I like straight pipe also.
Wouldn't mind reading opinions on the size though....

Lee

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post #6 of 33 Old 03-25-2012, 12:14 PM Thread Starter
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ok well what about the difference in 5in or 4in exhaust is it much of a difference
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post #7 of 33 Old 03-25-2012, 04:54 PM
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I just installed a 5" Straight Pipe on mine and it sounds good.


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post #8 of 33 Old 03-25-2012, 05:09 PM
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I was told by fairly knowledgeable people that anything over a 3.5" pipe doesn't have any improvements, seen as the turbo outlet is only 3.5". So anything over that would be preference. As far as 4" to 5", i'm sure they sound a little bit different, the bigger pipe having more room to resonate. So it is really up to you, do you like the idea of having a larger looking pipe? Or do you want to save a little bit of money and go with a 4"(still large) lol
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post #9 of 33 Old 03-25-2012, 06:38 PM
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My 5" straight pipe is a lot deeper with more "rumble" than my buddies 4" straight pipe.

He says he wishes he would have went with the 5".

I couldn't be happier with my decision to.

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post #10 of 33 Old 03-25-2012, 06:43 PM
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Quote:
Originally Posted by DrewGerhan View Post
My 5" straight pipe is a lot deeper with more "rumble" than my buddies 4" straight pipe.

He says he wishes he would have went with the 5".

I couldn't be happier with my decision to.
Exactly, my buddy and I ordered our exhaust on the same day, he got a 4" with muffler, i got a 5" straight pipe. I think he will regret his decisions

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