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Sep 3, 2018 | 08:36 PM

walter white

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Joined: Apr 2015

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From: charlotte nc

delete question

hoping to buy a 2012 6.7 150k miles next week after many years of driving gassers. my son's deleted 6.7 got me hooked. I would really prefer to delete emissions but not sure i want to hear straight pipes all the time. What happens if you leave factory muffler on? is it possible to Tee pipe before a muffler so i could fashion a cable operated dump pipe? Is there any other way to quiet down the jet noises when i need to be quiet? I would plan to tune it also. would that change my options?

I know its a weird question but i like my kids truck a lot more than my neighbors do

Thanks

Sep 3, 2018 | 09:03 PM

UGA33

Lead Driver

Joined: Sep 2006

Posts: 5,665

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From: Cartersville, Ga

Run a 4" with a muffler. It will be pretty tame.

Sep 3, 2018 | 09:08 PM

bcg

Tuned

Joined: Dec 2008

Posts: 342

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From: San Diego, Tx

Mine is deleted with a muffler, I'm not sure which one, and while you can tell it's a diesel, it's not loud at all. I'd say about 1/4 the volume of my 7.3.

Sep 4, 2018 | 10:32 AM

Idaho F250

5th Wheeling

Joined: Nov 2012

Posts: 48

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From: Kuna, ID

I hear that a 4" flo-pro (stainless) still gives that nice little rumble and some turbo whistle without being obnoxious.

Sep 4, 2018 | 01:42 PM

graysonp

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Joined: Aug 2017

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There's not a traditional muffler on the 6.7L. Just the DPF/SCR which acts as one. You can't delete and leave it on.

As others have said, put a 4" exhaust and an aftermarket muffler. It will be fairly quiet.

Sep 4, 2018 | 08:53 PM

walter white

Thread Starter

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Joined: Apr 2015

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From: charlotte nc

Thanks fellows

Sep 6, 2018 | 05:59 AM

RangersF250

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Joined: Apr 2015

Posts: 49

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From: Aberdeen, NC

I deleted mine and left the factor DPF back in place. Slightly louder than stock and no drone.

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Sep 6, 2018 | 09:00 PM

RangersF250

Freshman User

Joined: Apr 2015

Posts: 49

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From: Aberdeen, NC

Yes, poor wording on my part. I am DPF deleted but stock from the MBRP replacement pipe back.

Sep 7, 2018 | 08:08 AM

#10

graysonp

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Joined: Aug 2017

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Ok, I'm with you now. I first read that as if you were saying you put the factory DPF BACK in place.

Sep 7, 2018 | 09:09 AM

#11

Overkill2

FTE Legend

Joined: Mar 2017

Posts: 31,962

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From: Western NY

Quote:

Originally Posted by graysonp

There is a small resonator or muffler, which ever one it is, I don't know, on the tailpipe in the down bend of the tail pipe. I've heard of guys running their gutted "rocketship" with a 4' straight pipe through it. You have to cut it in half. Then probably weld it back together. I'm sure it could work.