I have a 2012 1 ton and have been highly disappointed with the mileage since its purchase.

I know a few guys who have done the ERG bypass and exhaust removal and they say its like having a new truck. And they claim 5 MPG more per gallon.

Any advise or ideas?

RUMBLON

I have heard the same thing from a few people. I have an 07 but we have smog testing and can't do it or it would fail. My mileage is around 18/19 hwy and 13/14 city and I get about 11/12 towing my 28ft trailer. It's not as good as the old 5.9 but I can live with it.

My 2012/ auto gets 12.5 to 13.5 HWY as I live in an area where we have no city driving. I brought a load of trees back on my car hauler the other day, maybe 5k load. Mileage was 8.3. sick of it. My 2005 dually one ton gets 20.4 all day long. Its a manual.

The guys who do this work claim 5MPG and 80HP gain. I could care less about the HP but the mileage when gas was four bucks, was killing me.

Plus from everything im reading, it extends the life of the engine too. We have no smog testing here.

RUMBLON

Never done it myself (I just have an old 24V cummins), but my friends that have the newer trucks say it was worth the money getting rid of the DPF and EGR crap. We don't have any inspections here either.

My 2012 work truck weighs in around 11,000lbs. Was getting 8.6mpg hwy. Did the egr delete as well as dpf delete. Also added the H&S tuner and mileage went to 15mpg hwy. I pulled the service body out recently.... With no extra weight, got 19mpg with combined city/hwy. BTW, the extra power is amazing as well!

We do them all the time at our shop. No emissions testing here in MO so no issues. Check with your local regulations before you commit to taking the egr and DPF off. With the correct parts it is a bolt on deal and can be returned to factory equipment if required later down the road. There is no downside to removing the egr, egr cooler, and DPF. Engine will have more power, get better mileage, and the engine oil will stay MUCH cleaner. We typically use EFI live or RaceMe tuners as of late depending on the model and the customers performance desires. You will need a delete pipe for the exhaust, egr cooler and egr valve delete plates, and a tuner to reprogram the vehicle. I have yet to hear a customer say they got worse fuel mileage or wished that they had left all of the emissions garb on.

I cant tell you how many Ive done!!

What you need to know?

Im having a local shop do it now. Its not cheap at $1800 but Im hoping for 5 MPG more which is what they claim is the average. This is to bypass the EGR, THE EXHAUST removal bypass and computer. Im not capable of doing it myself.

Im in total cattle country and several of my friends who haul cows/ livestock with their rigs as well as big rigs swear by the conversion.

It may be done today but I dropped it off yesterday to have it done monday. Looking forward to the first test drive.

RUMBLON

the last dually I did had 3:73 gears and in the ecm I only did 2 tunes from EFI live and in the second tune it would lay 4 stripes as long as I wanted and was a lil to crazy for the ol boy so I left it in the stock "deleted" tune which was 90hp over the plugged up emissions crap. Just uncorking makes a lot of free HP...

Kasey

If you run a tuner with more power, you better stud the head on the 6.7.

Even just a retorque is a good idea.

Excessive injection timing is usually the culprit for blown headgaskets on a 6.7. Keep the timing down under 30*. Also don't block off the coolant bypass from the EGR cooler to the cylinder head. Some delete kits come with a plug instead of hose and may disrupt proper coolant flow to the cylinder head.

I had a shop do the work, no chip, no tuner, just stock.

That said, I picked it up and its mostly up hill to my place, 5 minutes north. It obviously has more power and seems to glide if that makes sense, so not as much throttle is needed. When I arrived home I was at 18.4 MPG. That is a huge gain for this very disappointing truck.

Thats an easy 5 MPG gain, closer to 5.6.

RUMBLON

So if there's no tuner how'd you bypass it? Don't you need a tuner to keep the computer happy? (Nice gains though!)

By tuner, I meant after market stuff. The job comes with a reprogram of the computer.

RUMBLON

Thought I would update this. Went on my first long trip, got 19.8 on the highway. Im regularly getting 18.6 18.7 and very happy. The truck is like a new truck. So much more power

highly recommended.

RUMBLON

Ok not sure what the cost was to do what you did but if thats all you got I would not do it. I gave an 07 with the 6.7 and mine is all stock and I can get anywhere from 18/20 mpg on the highway and 13/14 in the city. I also get about 11/12 mpg when hauling my 28ft enclosed trailer with car, tools, gen, 4 wheeler and extra parts. Power is good enough for me as I'm not racing my truck.

COST ME $1850.00 and at this point worth every cent. Im getting at least 5 more MPG and this truck finally runs like my 2005 or better. Before I HATED it.

Would love to hear how it does pulling a loaded enclosed car trailer if you do that? i need a newer used truck and not sure what year to buy ....My lifted 05 gets horrific mileage time for a change...

I bought my '09 4x4 CTD 2500 used and it already had egr and dpf delete. I was, and still am, amazed at the power! I didn't get a tuner with it but believe they just reset everything. It gets as good as 23mpg unloaded and 15mpg pulling a loaded 18ft. trailer. I don't really want to turn it up further as I worry about the transmission longevity.

It makes enough power that traveling through the mountains it never has to downshift out of 6th gear going uphill!

The Jake brake is another great option on this truck. It really helps out in traffic!

my wifes picked up 2 mpg around town and close to 5 on the hwy. its gos an h&s tuner left on the lowest setting and the sinister egr delete dpf part of the exhaust is straightpiped.

Well,I used to haul a 32 ft enclosed race trailer prior to the work and it was great. I also hauled my 32 ft fifth wheel. It could only be better now.

Im still getting 18 or so on the highway/ mountain areas. Love the change.