Gas engine and Diesel of same specs.Pull the same.

When a diesel guy talks about an clean tune, we are talking about the soot mass because that is what people see. Of course the NOx would be off the charts and just about everything else. But of the states that smog besides Cali, they are just looking for soot, which many of the big name tuners stock tunes will pass. Just by turning off the EGR cleans up the soot. There are other things they do as well, trade secrets, to clean up the smoke. Interesting part is some also do emissions in place tuning, which with the right mods, results in fewer regens and more power. Believe what ya want dude, just don't go rolling coal on people like the moron you are.

4x4ord wrote:

Goose2448 wrote:


Rob Codenns, Idaho Rob, has been testing DPF in place tuning on his LMM. Been seeing a solid 3+ MPG gains and fewer regens. Guess GM doesn't always get stuff right.

Just because the thing produces less soot and requires fewer regens doesn't necessarily mean that it is producing less pollution.

Ching, we have a winner.

NOX will be sky high on his engine and if he doesn't know it, he is ignorant of the facts.

To look at something coming out of the pipe and say that is clean or not clean is ludicrous. You can't tell other than soot on a diesel. It's like people looking at used diesel oil and saying whether the oil is good or not. They are just fooling themselves.

I had many cars go to smog over my lifetime and I was usually shocked at the outcome until I got on a smog machine myself.

I had a big block Chevy in a Nova that would pull a low 12's high 11's. It was in tip top tune. Took it to get it smogged; it failed. The NOX were out of sight. WTH? "This engine is clean." WRONG! The tech took about 15 degrees of timing out of it plugged the vacuum advance and it passed with flying colors. It was a pig and burned a lot more fuel but it was super clean and I saw it on the 4 gas myself. Goose, just because "YOU" think the engine is clean doesn't make it so. Only the 4 gas will tell what is clean and what is dirty.

The reason Goose2448 friend won't take me up on my billion dollar offer is because HE knows it won't pass EPA standards. I guarantee the guy that writes this tune knows it. Some of his customers obviously don't, but he does if he has done any work on a 4 gas like I have.

One more time. If your friend thinks his tune will pass EPA standards have him submit it to the EPA for their stamp of approval. If it passes he is a billionaire over night. If not, your statement of "actually my truck is cleaner without the dpf then with"
is blowing as much smog as your truck. :B

Seriously, go to your friend and say" "Hey there is this guy on a forum I go to and he says your tune won't pass EPA OEM standards for new diesels." I told him my engine is cleaner with your tune and without my DPF. Who is correct. Be sure to say "EPA OEM standards for new diesels." Then come back here and tell what he said.

Think about it. Do you really think this guy would pass up a billion dollar opportunity? Or do you think your truck is a lot more dirty then you think?

4x4ord wrote:

Goose2448 wrote:


Rob Codenns, Idaho Rob, has been testing DPF in place tuning on his LMM. Been seeing a solid 3+ MPG gains and fewer regens. Guess GM doesn't always get stuff right.

Just because the thing produces less soot and requires fewer regens doesn't necessarily mean that it is producing less pollution.

I really doubt they would go up. Biggest thing coming from the tail pipe would be NOx, and on the LML, current emissions standards, there really isn't any of that either. These things are freaking clean. They put out hot air and not much else.

Turtle n Peeps wrote:
You didn't answer the question.

Why do manufactures put silly things like DPF's and SCR's on their engines when all they have to do is run your tune? You say your tune is cleaner than a DPF equipped engine.

Your exact words: " Actually my truck is cleaner without the dpf then with."

If true, just apply for the EPA stamp and your a billionaire overnight!!!! Let us know how that goes. I would be very interested because I have never met a billionaire in my life.

Didn't answer the question because I don't have an answer. But I do know when I took my DPF and started the truck and reved it up, it was dirty as hell on the GM stock tune. With my optimized stock tune from Kory, not my tuning, its smokeless. There is more timing in that tune and more vine position and a few other things. Kory pours his heart and soul into his work, that's why he is Number One in the industry. The guys at GM or Ford or Cummins get paid to do a job and that's what they do. Oh and yes my truck is cleaner without the DPF because it had failed and cracked. The EGR is also blocked, so that cleans it up a lot too. We do agree that you need more fuel for more power, but go at it different ways.

We all know the EPA does not care about the environment. All they want is our money. Face the facts.

Goose2448 wrote:


Rob Codenns, Idaho Rob, has been testing DPF in place tuning on his LMM. Been seeing a solid 3+ MPG gains and fewer regens. Guess GM doesn't always get stuff right.

Just because the thing produces less soot and requires fewer regens doesn't necessarily mean that it is producing less pollution.

You didn't answer the question.

Why do manufactures put silly things like DPF's and SCR's on their engines when all they have to do is run your tune? You say your tune is cleaner than a DPF equipped engine.

Your exact words: " Actually my truck is cleaner without the dpf then with."

If true, just apply for the EPA stamp and your a billionaire overnight!!!! Let us know how that goes. I would be very interested because I have never met a billionaire in my life.

You apparently have no idea how to tune a Common Rail Diesel do ya? Guessing you drive a Cummins too.

So this tune is powerless eh?
Kory Willis 120 RWHP Tune LMM

Just to let ya know, that tune will consistently dyno at 450-460 RWHP. Which is pretty quick in a 7500 pound truck for nothing but a tune.

Rob Codenns, Idaho Rob, has been testing DPF in place tuning on his LMM. Been seeing a solid 3+ MPG gains and fewer regens. Guess GM doesn't always get stuff right.

Goose2448 wrote:

transamz9 wrote:

Turtle n Peeps wrote:
That's a clean tune? ROTFLMAO


This was the statement I disagreed with:

Wilber1 wrote:
What! Throw more fuel in without pumping more air and all you get is black smoke from unburned fuel. You do realize that nothing will burn without oxygen.

And

Wilber1 wrote:
The unburned fuel causing the smoke is helping cool the engine, not making power.

Now, do you agree these statements or not?

Can you have a powerful truck with a clean tune? Sure...........but it will be faster if it's burning more fuel. Hell, trucks with DPF's are powerful and they are very clean.

They are no cleaner that the non DPF trucks, they just have a DPF.:S

This Turtle. He is very right. Actually my truck is cleaner without the dpf then with. When I was doing magic to my truck, I fired it up in between dpf and new tunes and it looked like a Cummins with a plastic bag over the air filter. Haha dirty as hell. Now my stock tune is clean, no smoke at all, its been tweaked. Even my 120 tune is super clean. Sure it smokes a little before the turbo lights, but not intersection blacking out. It's more of a slight haze. 6dot6's truck is clean as well from what I have seen and its damn fast. I ran a LBZ with some PPE tunes(180 tune) and he was smoking something bad and I just ran my 60 horse tow tune, smokeless, and he ate his lunch. No comparison. If the tune does not clean up once the turbo lights there is something wrong.

ROTFLMAO

Well hell, if your tune is cleaner than an OEM EPA mandated tune you need to patent your tune and sell it to the big 3. You might be the saving grace for the auto industry.

Just think about this for a second.

No DPF and a manufacture can save more than a grand a truck!! They can run you 60 HP "smokeless" tune and kick every ones a$$ and do away with all of that dumb smog stuff. More than likely they won't need the DEF or SCR with your tune either?


Just take it to the EPA and get them to put their stamp of approval on it and you will make Bill Gates look like a piker!

What I don't get is manufactures spend billions of dollars over the years on meeting smog requirements for the EPA and all they had to do is come to you and pay your price for your tunes and save all that money. :S

Silly manufactures! :R :R

transamz9 wrote:

Turtle n Peeps wrote:
That's a clean tune? ROTFLMAO


This was the statement I disagreed with:

Wilber1 wrote:
What! Throw more fuel in without pumping more air and all you get is black smoke from unburned fuel. You do realize that nothing will burn without oxygen.

And

Wilber1 wrote:
The unburned fuel causing the smoke is helping cool the engine, not making power.

Now, do you agree these statements or not?

Can you have a powerful truck with a clean tune? Sure...........but it will be faster if it's burning more fuel. Hell, trucks with DPF's are powerful and they are very clean.

They are no cleaner that the non DPF trucks, they just have a DPF.:S

This Turtle. He is very right. Actually my truck is cleaner without the dpf then with. When I was doing magic to my truck, I fired it up in between dpf and new tunes and it looked like a Cummins with a plastic bag over the air filter. Haha dirty as hell. Now my stock tune is clean, no smoke at all, its been tweaked. Even my 120 tune is super clean. Sure it smokes a little before the turbo lights, but not intersection blacking out. It's more of a slight haze. 6dot6's truck is clean as well from what I have seen and its damn fast. I ran a LBZ with some PPE tunes(180 tune) and he was smoking something bad and I just ran my 60 horse tow tune, smokeless, and he ate his lunch. No comparison. If the tune does not clean up once the turbo lights there is something wrong.

6dot6 wrote:

Goose2448 wrote:
Sure, but who wants all that smoke? You will make more power and reliable power by tuning correctly. My truck puffs just a bit on my 120 tune. 430 HP at the wheels with almost no smoke fulls a lot of people. Clean tuning is where its at. Guys that "roll coal" piss me off. That's partly why we ended up with the stupid DPF and DEF in the new trucks. So what I get out of this, is if a truck smokes more, its faster? nono

Need smoke to go fast?

Kory Willis Clean Tuning

user name looks familiar. :)

Yep! Hi! Haha I love your truck and that's what I'm going for with mine only not quite as low.