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When doing a change-over to conventional exhaust, does one have to do a def delete, if so,how ?

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What year and motor?

I have a 2011 6.7. I did a complete delete. If you remove DPF you will need a tuner. From before deletes to after, complete different acting truck. So much power its insane. You can find complete kits on Ebay. I went with a Mini Maxx tuner, Sinister EGR delete kit, S&B cold air intake and FLo Pro 5" Stainless exhaust. Cost me $1600.00. Did it in my driveway over a weekends time. Highly recommend.
 

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I'm not looking for more power or anything else. I'm perfectly happy with the way my truck runs and pulls. My 2012 only has 56K miles on it and my dealer says the DPF is cracked and it is out of warranty and will cost $2,800 to replace it!!!! I am just looking for a permanent fix because I can't afford to spend $2,800 every 56K miles.
 

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For that kind of money you can fix it one time and never have to worry about it again.

As for not wanting more power, that's easy. Keep you foot out of it and it'll drive like a couch. "Too much power is just about right."

Give us a call, we'll tell you all about it.


Dougism -
"I want the government out of my business, out of my bedroom and out from underneath my truck."
"Our government has only two jobs; Protect our Borders and Protect our Money. They are doing neither."
 

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The Green Lie

We are such a visual society if it looks like a good idea we buy into it. Crap we elect people not based on qualifications but looks.

Yes the Air looks cleaner, but is it better for the Environment?

Everyone talks about cleaner Air and Low Carbon foot print.

If you take into account the extra fuel, Air, Def Fluid used, plus the CO2 produced, is the carbon foot print larger.

Just like Ethanol yes you can lower emissions but at what cost? How much energy does it take to produce Ethanol?

It all depends on what your using the truck for? Hauling Delete the DPF ASAP, everyday driving keep it.

Delete the DPF you will love the towing ability.

You are so right, boyeraz! These hybrids that are touted to be so "earth-friendly" are no more fuel efficient than a diesel equivalent, and you have toxic batteries to manufacture and dispose of... This society of sheep believes whatever is popular. And carbon footprint... SERIOUSLY. If you want facts, look up what ONE volcanic eruption produces compared to the estimated carbon emissions of all of human history. It is very enlightening. Facts, people!
 

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appreciate it...im new to diesel trucks...i am looking for hard facts about deleting the def .. ie gas mileage does it go up ? does removeing it.... ware out the engine faster.. i mean with the DEF does it help anything other then emissions? i pull a 42 toyhauler a few times a year .. what can i do on a budget to help with hp and mileage. really anything would help.. thanks
 

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appreciate it...im new to diesel trucks...i am looking for hard facts about deleting the def .. ie gas mileage does it go up ? does removeing it.... ware out the engine faster.. i mean with the DEF does it help anything other then emissions? i pull a 42 toyhauler a few times a year .. what can i do on a budget to help with hp and mileage. really anything would help.. thanks
You're mileage will go up. How much is the question. I have read not as much as deleting the 6.4's. I saw about 2mpg when I did my 6.4 . I know my truck below runs about 15.5mpg down the highway at 70mph. It was around 16-16.5 before I added the larger tires. When the truck goes through a cycle my mileage falls about 1 mpg. I almost gain it back when another regen starts. My truck goes into regen about every 350 miles. I'm guessing I'm losing about 10% of my mileage. Lighter trucks which get better mileage and don't regen as often likely lose less. I'm currently debating deleting. The DEF goes no where near the engine. I can't see how deleting would ever hurt the engine. I pull a 40ft 5th wheel. I gain about 1 mpg driving 65-68 versus 72-75. Makes a huge difference. My combined is a little over 25K. 8-9 at 72-75 depending on wind and terrain. 9-10 slowing down just a bit.
 

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Just picked-up my 2011 from Bosque Flat Diesel near Stephenville. Matt installed the H&S tuner. EGR block and DPF delete. Although, he didn't remove the shell of the DPF and install the straight pipe. he opened the shell of the DPF and "roto routered," welded it back up and reinstalled ... so now I've got a 6' section of BIG pipe. Gave it a low rumble, too. Not loud, but noticeably different.

I gotta study the ops of the H&S unit a little bit. The pyro didn't respond as I expected. In fact, Pyro 1 with "factory source" actually indicated inverse ... throttle closed, the displayed EGT would get to 1800 degrees. With a load on it, it'd drop to 350ish ... clearly that's incorrect.

I haven't "tried it out" yet, but I can tell it's much more responsive. The 20 mile drive home, which included driving through Stephenville ... the computer displayed 19 mpg!!!! I'm anxious to do an old school calculation; though precision is difficult because refilling to full with the flat bed filler neck is a challenge.

Has anyone tried to plumb the DEF tank to hold fuel? Using that 6 gallons would be handy.
 

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Update ... returned to Matt earlier this week and he installed another thermocouple to a Bully Dog transducer which connected to the H&S screen. Easy.

Pyro 1 now reads correctly.

Took it on an empty (4 SUV tires for Mom) 180 mile trek yesterday ... 17.1 mpg displayed ... 20-30 mph wind pushed half of that distance and I wasn't smelling roses along the way. "...long way to go and short time to get there."

I am happy. Thanks Matt/co at Bosque Flat Diesel.
 

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That's why everyone should delete....cleaner air and less waste. Make your engine last longer and use less fuel! Do you have any idea how much pollution and energy it takes to make fuel, another engine or emissions parts, or a whole new vehicle for that matter? If you want GREEN, DELETE, DELETE, DELETE!
 

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I'd love for you or anyone else explain to me how a diesel engine that will run 20 miles on 1 gallon of fuel is more harmful to the air that we breathe than a ''government smog control equipped'' diesel engine that will only run 12 miles on 1 gallon of fuel ?
 

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Sorry, but this is wrong.

It wasn't your question, but there is a PCM update to prevent the trucks from shutting down due to an EGT sensor failure. Update the PCM and it won't shut down again for that problem.
I had the PCM update done some time ago and my truck was shut down recently due to EGT sensor failure.

I wasn't going to do a delete, but I am now...
 

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Exactly. Maybe someone else could chime in but isn't the "lifespan" of the DPF supposed to be just over 100k?
Either get rid of or be ready to buy another..... or trade to a 2013-2014 model :)
I replaced my DEF System on a 2015 at 104,000 miles. $2800. Definitely worth the delete in my opinion.
 

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I deleted after mine started making oil at 100,000 miles. Took it to the dealer first. They put their “best diesel mechanic” on it. Told me he went through it top to bottom and nothing was wrong. Just drive it. Also told me there were no reports of the 6.7 making oil from regens. Got the oil changed, drove another 3,000 miles and oil was up almost 3 quarts. Deleted- stopped making oil and fuel economy went up almost 20%. I had no complaints with the power or performance of the truck before deletion but Ford was offering no help (and denying the problem) and I wasn’t going to pay $2500 or so every 100,000 miles to repair/replace the DEF system when deletion cost so much less and dramatically improved performance and economy.
 

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Diesel motors don't make oil. I have a 15 and it doesn't make oil. Regens don't make oil ether. If your truck is making oil than you should have taken a sample and sent it to Blackstone. Good luck with your truck.
 

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Diesel motors don't make oil. I have a 15 and it doesn't make oil. Regens don't make oil ether. If your truck is making oil than you should have taken a sample and sent it to Blackstone. Good luck with your truck.
It was diesel fuel dilution. When it was “making oil” (phrase used euphemistically) the oil smelled like diesel when it was changed. After deletion the problem was gone. Immediately and completely. 20,000 plus miles post-deletion with no issues, other than 20% increase in fuel economy. I did not delete to improve anything. I bought the truck new and was very happy with it with DEF system until it failed and Ford told me there wasn’t a problem. I don’t see how I could expect that truck to last long when it was adding 4-5 quarts of diesel fuel to the oil in the engine crankcase every 5,000 miles
 
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