MBRP - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 18 Old 10-31-2011, 06:34 PM Thread Starter
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MBRP

4 inch straight pipe from the turbo no muffler. whats the bad and good about it
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post #2 of 18 Old 10-31-2011, 07:12 PM
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all good no bad! other than if someone looks under IE the law and see's no muffler. id just get their muffler its basically a straight though anyways. ill post a pic of what it looks like on the inside for you

2009 Ford F-350 FX4 4x4, H&S 300HD, MBRP 5" DP back exhaust, S&B intake, sinister egr delete, 4" BDS lift with fox shocks, 20x12 fuel nutz, 37" toyos, Custom painted headlights by me


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post #3 of 18 Old 10-31-2011, 07:13 PM
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this is what the inside of an MBRP muffler looks like. but again all good no bad they are great systems and easy to install!
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2009 Ford F-350 FX4 4x4, H&S 300HD, MBRP 5" DP back exhaust, S&B intake, sinister egr delete, 4" BDS lift with fox shocks, 20x12 fuel nutz, 37" toyos, Custom painted headlights by me


SOLD: 2006 Ford F-350 4x4 King Ranch,ARP Head Studs and all the works
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post #4 of 18 Old 10-31-2011, 07:26 PM
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but that muffler will change the sound of the truck....I started with a muffler then went to a straight pipe....and pretty sure im gonna go back to the muffler....the straight pipe to me is just a little to loud, or something....i like the sound a muffler better....
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post #5 of 18 Old 10-31-2011, 07:26 PM Thread Starter
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oh wow your right theres pretty much nothin to it. now what are the advantages and disadvantages of a 5 inch ? heard you actually loose power and lose turbo sound with a 5
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post #6 of 18 Old 10-31-2011, 07:31 PM
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thats a bunch of bs if you ask me. my brother has a 4" i have a 5" the only difference is mine sounds alittle deeper thats it. i still have a huge whistle and still have power. what i have read and do agree with is the size of the downpipe. keep is 3.5" and the MBRP has the 3.5" downpipe with the kit so dont worry about that. you will still have the same power and sound either way. and btw you put that muffler on with the humps facing to the rear not the front. so its basically straight piped but there is a muffler look to it so that the law will leave you alone

2009 Ford F-350 FX4 4x4, H&S 300HD, MBRP 5" DP back exhaust, S&B intake, sinister egr delete, 4" BDS lift with fox shocks, 20x12 fuel nutz, 37" toyos, Custom painted headlights by me


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post #7 of 18 Old 10-31-2011, 07:32 PM Thread Starter
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whats the point of putting a straight pipe on instead of a muffler ?
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post #8 of 18 Old 10-31-2011, 07:37 PM
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some think its louder. in some cases it is just depends on the maker of the muffler. i know silverline actually has a muffler that makes it a tad quieter. and its all up to the individual person.

2009 Ford F-350 FX4 4x4, H&S 300HD, MBRP 5" DP back exhaust, S&B intake, sinister egr delete, 4" BDS lift with fox shocks, 20x12 fuel nutz, 37" toyos, Custom painted headlights by me


SOLD: 2006 Ford F-350 4x4 King Ranch,ARP Head Studs and all the works
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post #9 of 18 Old 10-31-2011, 07:37 PM Thread Starter
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oh okk yeah glad you told me that. i think im just gonna go with the 4 inch. thanks for the feedback guys
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post #10 of 18 Old 10-31-2011, 07:37 PM
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less restriction....and see i think theres a different sound with 5inch and 4inch...i think u get a deeper sound with the 5inch, but more turbo sound with the 4inch.....my truck with a 4inch has more turbo sound then my buddies with a 5inch....but i would still get the 5inch...looks a ton better...
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