Does all of the goverment crap that will be on the new 6.7 mean that we will no longer hear the sweet sound of a straight piped Cummins?To me owning a Dodge Cummins that can't be heard is heartbreaking.:(

The muffler has no effect on emissions, no wiring attached to it. So it could come off easily. It will need is some kind of "wiring bypass" to plug into the cat/soot collector thing[yuk]

the 07 with aftertreatment will be a very tough challenge to bypass.... there are more than 190 fault codes. and some of them are for missing DOC or DPF fault codes, the ECM will sense if one is missing, along with knowing what the readings should be for the number of hours and duty cycle that the engine is seeing. so just running a resistor in the differential pressure sensor will not be enough, along with doing something to all 3 temperature sensor that will have to change continously to show that it is oxidizing either in passive or active regeneration.

and most of these fault codes will generate a severe derate. :cool:
no fun driving a truck like that.[yuk]

I saw a cab and chassis 6.7 the other day and it only had a particulate filter.. NO MUFFLER...

Gues they are one in the same now..

Gerry

I hear ya. Not straight piping your dodge should be a crime. Im so glad I bought and 06

the 07 with aftertreatment will be a very tough challenge to bypass.... there are more than 190 fault codes. and some of them are for missing DOC or DPF fault codes, the ECM will sense if one is missing, along with knowing what the readings should be for the number of hours and duty cycle that the engine is seeing. so just running a resistor in the differential pressure sensor will not be enough, along with doing something to all 3 temperature sensor that will have to change continously to show that it is oxidizing either in passive or active regeneration.

and most of these fault codes will generate a severe derate. :cool:
no fun driving a truck like that.[yuk]


Sounds like modding it will be really tricky. I bet there will be guys figuring it out, it will just take a while. And it will be only guys that are not that concerned with keeping the warranty. I am hoping I don't have to smog our trucks. Even if it is smog legal, smogging is a pain and it cost money.

someone'll figure it out [coffee]

the 07 with aftertreatment will be a very tough challenge to bypass.... there are more than 190 fault codes. and some of them are for missing DOC or DPF fault codes, the ECM will sense if one is missing, along with knowing what the readings should be for the number of hours and duty cycle that the engine is seeing. so just running a resistor in the differential pressure sensor will not be enough, along with doing something to all 3 temperature sensor that will have to change continously to show that it is oxidizing either in passive or active regeneration.

and most of these fault codes will generate a severe derate. :cool:
no fun driving a truck like that.[yuk]

I LOOOOOOOOOOOOOOOOOVVVVVEEEE MY 05![laugh]

It looks like there is 2 small stainless tubes coming from it.. From previous posts I think this is to determine if the particulate filter is clogged.. I wonder if you could just tie the 2 tubes together with maybe a mall needle valve (to create some restriction).. keep the flow open so it never thinks it is dirty and doesn't go into cleaning mode..

Just a thought...

Gerry

I have a 07 with a 5.9 !!! Lucky me :) MBRP straight coming soon :D

why isn't this thread locked? :confused:

Cause the mods want to know, too!

why isn't this thread locked? :confused:
IMHO it should be. Removing the new smog stuff will not only violate your warranty, but also the Federal Laws mandating it. Do so at your own risk, and leave Jack and Larry out of it...

why should it be locked? talking about breaking the law is not illegal...

If you wanna straight pipe it, go ahead. I have done it many times.

But the planning it out on DTR is what strikes me as odd/inappropriate. Notice I usually stay out of such discussions.

But you are right, someone will figure out a way around. 6.7 Smarty?

I think it's more of a general tech/technology discussion vs. breaking the law...

should we put a lame disclaimer at the begining of every post saying that we're talking about our offroad/farm truck that will never see a public highway?

I guess I'll put it in my sig so when we talk about injectors and programmers that increase emisssions beyond factory parameters, the feds will see that I'm talking about a pure competition vehicle and they won't come kick my door down

I think it's more of a general tech/technology discussion vs. breaking the law...

should we put a lame disclaimer at the begining of every post saying that we're talking about our offroad/farm truck that will never see a public highway?

I guess I'll put it in my sig so when we talk about injectors and programmers that increase emisssions beyond factory parameters, the feds will see that I'm talking about a pure competition vehicle and they won't come kick my door downViewpoint.

I'm not gonna say right or wrong, but since you brought it up, I decided to offer my thoughts...

And I agree on the tech discussion. To a point, but at some point it seems to go a little far.

This is probabally a bad analagy, but general info on building a bomb/cooking meth is viewed as informative, but a detailed how to would be crossing the line...

I always believe what anyone wants to do to thier own truck is up to them. it is going to very interesting year with guys trying to get around the aftertreatment system. it will take a complete rewrite of the ECM calibration. I would get a 06 ECM and install it , but then your dealing with a different transmission and that is not going to work.

those two tubes you see is the aftertreatment differential sensor tubing. one goes to the inlet of the DPF and one to the outlet, its job is to measure the flow thru the DPF, and send that info to the ECM, so the ECM is always looking for this info and know that the delta pressure will always be changing due to the duty cycle and accumulation of ash in the DPF, so just plugging it or tying the tubes together will get you into a severe derate within 5 miles. You will also find two temperature sensor, the DOC is near the engine and also has a temp sensor at the inlet of the DOC.

IMHO it should be. Removing the new smog stuff will not only violate your warranty, but also the Federal Laws mandating it. Do so at your own risk, and leave Jack and Larry out of it...



I really find this funny... Removing the Cat, particulate filter etc is no more illegal than installing a Downloader, box or injectors.. they are all federal crimes.. In these newer motors the ECM, Program, and sensors are all part of the federal emissions. IMHO the only reason that those talks are not locked is because they are worth to much money.. removing a cat is worth about $50.00 or less with a cat delete pipe..

So in essence any talk performance enhancing engine mods are not only a violation of federal law but also a violation of this sites terms of use...

There are some performance mods legal as long as they come with a Federal CARB certification and sticker.. Hmmm last time I looked none of the down loaders or boxes we sell have that..


Mind you I don't condone removing or modifying any emissions equipment and my truck is mechanically stock with all emissions in place.

what it really boils down to is this site is run by the moderators and they do an excellent job.. it is what they want to allow or not allow..

well, I'm no beagle1, but I've had my run-ins w/ the mods on this site...

I love this site... its a great source for info, but the ultra-tight (and often hypocritical) moderation holds it back... I guess this is my uncouth method of trying to better one of my favorite sites on the net, but that's me!!!!

if I've stepped on all ten toes, please delete/edit my posts, but don't ban me! :(

if I've proven my point, please delete/edit my posts and see where I'm coming from! [laugh]

making friends all over the net,

Forrest

And I was mostly playing Devil's advocate with Forrest...

In the end it boils down to what each one is comfortable with. And Larry has the final say.

I always believe what anyone wants to do to thier own truck is up to them. it is going to very interesting year with guys trying to get around the aftertreatment system. it will take a complete rewrite of the ECM calibration. I would get a 06 ECM and install it , but then your dealing with a different transmission and that is not going to work.

those two tubes you see is the aftertreatment differential sensor tubing. one goes to the inlet of the DPF and one to the outlet, its job is to measure the flow thru the DPF, and send that info to the ECM, so the ECM is always looking for this info and know that the delta pressure will always be changing due to the duty cycle and accumulation of ash in the DPF, so just plugging it or tying the tubes together will get you into a severe derate within 5 miles. You will also find two temperature sensor, the DOC is near the engine and also has a temp sensor at the inlet of the DOC.

was wondering in the two canister..does the dpf is the firts on the exaust and the "doc" second??? or the opposite?? personaly i think that the dpf is the firts following by the doc...

I have not seen the DCx version yet , but I have seen blue print of the system , they are running a DOC right off the turbo and then there is a NRC after that , and the DPF is last, some will have a muffler after the DPF,

[coffee] I plea the 5th![tapdshut] [tapdshut]