Dpf n egr delete tips

Well I'm tired of poor mileage and no sound. I'm also new to the 6.4 world had an 06 cummins prior. Looking to doing a complete delete and doing it right. Where do you guys recommend I start. Thanks!

Baby Steps

You must remember when buying a tuner which you will need for the DPF and CAT delete. Some programmers out there will not give you the option of shutting the DPF CYCLE off. You have to get that in a tunmer. The 2 best out there in my opinion are H and S Mini Maxx, and Spartan. H and S guarantees not to leave a footprint incase of warranty issues, but if you yank the DPF and CAT off they may void your warranty anyway.
You will also have to look into getting a Cold Air Intake kit. By doing all the above you will notice a huge increase in power, throttle response, and fuel mileage. Good luck in your endevors.

Exhaust

If you buy the DPF and CAT delete pipe are you planning on keeping your stock muffler and tailpipe. I live just outside Youngstown, Ohio and will be removing my 5 inch magnaflow with 6 inch polished stainless tip soon. I found a great deal on a set of MBRP Cool Duals exhaust that I bought and should be getting soon. Probably wont install till spring in this great Ohio Wheather, but would give you a gtreat deal if thats what you choose to go with. I only have about 300 miles on it, but by the time I take it off maybe 1000-1500 miles on it. List price was around 500, would sell to you complete for 250. Complete, all clamps, 4 to 5 inch pipe etc...... etc......... My phone number is 330-760-1893, and my name is Kevin if your interested. Thank You

Want to do it right? Right is relative. Dpf delete and tuner a must in my opinion. Want to open her up and see real gains (HP, TQ, Fuel mileage) then see my list of mods below. Can all be done in one afternoon by 1 guy.

Yeah the h&s mini max or black max is a good tuner. Get a full exhuast minus the down pipe. its pretty good in stock form. just when you do it remember to install programmer and turn off the dpf before you remove the stock
exhuast.

When you guys talk about significant gains in fuel mileage, what kind of numbers are you talking about? I have been all over the H&S forums and most are indicating fairly insiginificant fuel mileage gains such as 1-3 mpg. No doubt about the hp and torque benefits, but there seems to be a lot of debate about fuel mileage gains.
If I knew I could get a 5 mpg increase towing my fifth wheel, it is a done deal.

stclairdean said:

When you guys talk about significant gains in fuel mileage, what kind of numbers are you talking about? I have been all over the H&S forums and most are indicating fairly insiginificant fuel mileage gains such as 1-3 mpg. No doubt about the hp and torque benefits, but there seems to be a lot of debate about fuel mileage gains.
If I knew I could get a 5 mpg increase towing my fifth wheel, it is a done deal.

Click to expand...

that's a tall order...5mpg....it's possible. I can only speak about the H&S product..it gives you the tools to get your mpg up. Along with the obvious ..DPF/CAT delete...the H&S tuners also give you some tranny tunes that help you tailor the tuner to your needs..as well as controlling low boost fueling. Once you choose to delete the DPF/CAT the H&S tuner also disables the EGR. Most folks end up removing the EGR system or use blocking plates. This is to prevent coolant from entering the engine should the cooler breach. Another popular mod is re-routing the CCV. I was getting 10mpg. Now i get 14-15mpg...those numbers are not towing numbers. Overall...the truck drives and shifts ...in my opinion...much better...smoother. And you have the ability to change power settings on the fly. best of luck. PS...check out the 6.4 performance threads.

I am also in the market to finally drop my DPF and have researched the H&S tuner kits (recently turned over 100k miles and no more factory warranty). I have a buddy that recently completed this with the H&S XRT Pro and shows a massive gain in MPG. The onboard computer is now showing 24 mpg. This increased from 12. Could this be true or could the tuner be effecting it? The increase HP and TQ compared to my truck is ridiculous as well.

My hesitation is living in California and having to SMOG the truck every 2 years. Although it does not seem to difficult to put DPF back on before smogging, are there any other options for smogging with DPF dropped.

I also tow alot (24' boat) but assume this will only help with towing.

Suggestions anyone??

tderringer said:

I am also in the market to finally drop my DPF and have researched the H&S tuner kits (recently turned over 100k miles and no more factory warranty). I have a buddy that recently completed this with the H&S XRT Pro and shows a massive gain in MPG. The onboard computer is now showing 24 mpg. This increased from 12. Could this be true or could the tuner be effecting it? The increase HP and TQ compared to my truck is ridiculous as well.

My hesitation is living in California and having to SMOG the truck every 2 years. Although it does not seem to difficult to put DPF back on before smogging, are there any other options for smogging with DPF dropped.

I also tow alot (24' boat) but assume this will only help with towing.

Suggestions anyone??

Click to expand...

The onboard computer is wrong. I don't believe he would be getting 24mpg. I am sure it improved a little though. Most people say 10-15%. What are you asking about the towing part of your question?

That is why the onboard computer is called the "Lie-O-Meter"!

Dave