What can't you pull with 350/650 on a stock 6.7L? I can pull this with 160/400..........................



When I have one of our new trucks hooked to the trailer I can put a Jeep Grand Cherokee on there yet too. And with two of those big trucks and a Jeep on an trailer that weighs 8k empty I can run over the speed limit when pulling with a bone stock 07' 3500 5.9/G56. What could you possibly be doing that needs more?

 

And also, our trucks only get used for business, if they are not pulling they sit still. I have found that the bottom line works out a lot better money wise if you leave the trucks stock, they live a lot longer.

 

It will alter the NOISE emissions of the vehicle , therefore , it is illegal , any exhaust modification IS AND HAS BEEN illegal, I don't care if TDR says it is ok or not. I am going to take the liberty of sending them an E-mail pointing out their mistake , because i think they are smart enough to realize that they could suffer from legal recourse due to promoting that modification for on road use.

 

I am sure they do live longer if left stock. I am usually over 35,000 when I am loaded put 20 1500 pound bales on a 34 foot flatbed, Or 17 1200 pound+ cows it takes power. In know of 3 trucks that are used like mine. one died at 380,000 the other 2 have over 250,000 miles and running strong.
When I turn the TST off I am downshifting on all the hills and am down to 50-55. So far 22,000 trouble free miles on the o6 with over 16,000 towing

 

First of all, I really don't know why I'm even making an effort to argue with you looking at the mods on your truck. Most of them make your truck illegal. I was simply answering some of the questions that the thread was about. If taking the mufflers off the truck is illegal then probably 75% of the people that belong to this board are illegal.

That being said, after reading your profile, I know there is no use in argueing with you, 20 year olds know everything.
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If you read what was stated, ( "In the exhaust system there is a selfcleaning diesel particulate filter (DPF), an oxidation catalyst, and a muffler. The muffler is not part of the emission control system and can be removed without violating emissions compliance".) , NOISE is not part of the topic. It is simply saying that if you do remove the muffler you wont affect the emmisions control system. Basically, the exhaust will still be as clean as it was before the muffler was removed. As far as pointing out there mistake, they didnt make one to begin with. Now, if it said that removing the muffler has no effect on noise emmisions and it is perfectly O.K. to be removed, then I might justify pointing that little mistake out. ( I wouldnt, but, Im pretty sure you would )

 

In many states a turbo is considered a muffling device,in those states you could get by with removing the muffler.Its my opinion that the muffler is on to satisfy those laws,and because Dodge/Cummins has been paying attention to NVH a lot since 2003.It is still a violation of federal law to tamper with or render inoperative any noise control device on any vehicle that is used on public roads. If it was mine,Id remove the muffler If i wanted too.I have twin turbos,and a a muffler on my truck,and i like it this way,its much quieter than stock,no drone or resonance.
Taking off a cat convertor or particulate trap is a whole nother subject.The fines here get steep,yet I cant beleive this months diesel power magazine has an article with them removing a cat convertor,they also show trucks without them that I know had them.Guys who remove them,be careful!The fines are huge.

 

I will say one thing about the emissions system on the 6.7 engine. You won't have to worry about getting soot on your fender. After nearly 13,000 miles I can wipe the inside of my exhaust pipe with a white rag and it is the same color it was before I wiped it. No soot at all.

 

You can change out the muffler legally. Have we all forgotten that Chevy has been running this system for a couple years now and they replace their mufflers post the EGR stuff. I was talking with a D-max guy the other day who replaced the muffler. And he says he keeps getting codes because of the EGT drop. I guess with the reburn effect the sensors pick up tempatures and the exhaust makes it too low. So he gets codes. I am sure this board soon will have many issues with this

 

Chevy has not been running this system for years when you include the DPF and regeneration. The only thing in common with the Chevy is the EGR side of the system. The aftertreatment concerning the DPF fuel dosing etc. is totally new.

eb290, sorry for the mistake, when you said, muffler, I immediately thought of the DPF.

 

No problem.

 

I read three articles in the Feb issure of Diesel Power Magazine on my flight to Maine today. They had an article on the new Dodge, Ferd, and Cheby diesels that were quite informative. After reading how much bull crap is on these motors, I'm sure it will be a while before any real power boxes are on the market. They are going to have to be programmed to do sooo much crap that they will be very expensive...I'm guessing.

 

in the state of california a vehicle with a gvw over 6000 lbs is not required to have an adiquet muffler (according to buera of automotive repair) and they do not have exhaust noise polluttion requirements for vehicles over a 6000 pound gvw in ca.

 

Wow - that's just wild. I ended up getting a turndown (yeah - I know - they're wimpy but I don't care - it keeps the truck cleaner longer) because of the soot on mine... I'm going to the Chicago Auto Show next month - hope I get to see one of them there...

 

75% of all trucks on these forums are in violation of various EPA-enforced Federal laws. According to Federal government, any modification that affects a vehicle's chemical or noise emissions is illegal. Timing alteration, exhaust modification (even 50 State Legal exhaust modification), PCM tuning, or even anything that changes the loading put on the engine (i.e. torque convertors) are against Federal regulations. These statutes are not actually enforced by the EPA, however, so it is irrevelant at the moment. (Until emissions ****'s take over the country, we all loose the right to vote due to our status as felons, and they put all Diesel owners in death camps.)

The cops in states typically only enforce their state's laws; the legality of no muffler varies from state to state. Even if you're not breaking the law, you don't want to flaunt you're sound, because if you annoy a cop you will get a ticket for something. But, in a lot of states there's nothing the matter with removing the muffler.

In case you don't believe me because I'm not even 20:

http://dodge.off-road.com/dodge/arti....jsp?id=194395

Let us all bask in our status as felons.