I am buying the h&s mini maxx tuner I have that part figured out. Where I am un sure about is the delete pipe part and exactly what to go with. Should I get the cat/dpf delete or just the dpf delete pipe kit? Whats the difference? I also have seen recomendations for A 5" down pipe is that the best route to take? I am not trying to break the bank and the price range varies significantly. So exactly what do I need? I just need advice I want to do it right the first time. 2008 f250 6.4 powerstroke thank you.....
If all you want to do is get rid of the dpf, I would get the cat/dpf delete pipe. The cat and dpf are bolted together and much easier to take of and put back on as 1 piece. No need to keep the cat and only do the dpf because the cat is restrictive also.
If you want a full system, they delete the cat and dpf and you can get them with or without a muffler. It doesn't matter if you get 4 or 5 inch. Difference will be a little sound and price.
That being said, I just put a Flo-Pro 4" from the downpipe back on my truck with a muffler and its just fine for me.
The delete pipe only would be about your cheapest route and get the most restrictive parts of your stock exhaust freed up. I just had to get rid of those goofy tips on the stock exhaust also.
At the very least I would recommend doing a DPF/CAT Delete Pipe. If you are on a budget, that is all I would suggest doing. Let us know if we can help with anything. Thanks
Couple questions, and forgive me, because I am new...
Can you get rid of the regen without a tuner? If I get rid of the regen and the DPF, would I have to increase my exhaust size to see any improvement in power/gas mileage.....my only true desire is to get better gas mileage...I really don't care about the power gains..if I increase my exhaust size, will that affect the spare tire storage?
You will need some sort of tuner or device to shut regen off. Another thing you have to keep in mind is that the more power you add, the better fuel mileage you will get out of your truck as long as you drive it easy.
The DPF/Cat delete pipes will be much easier to install and more beneficial than just a DPF delete pipe alone. We have a package with that kit and the Mini Maxx on our site. Feel free to give us a call with any questions.
So they make a piece that replaces the cat converter and the DPF? I assume that does include the muffler....do they make a piece that goes from the cat converter to the end of the exhaust?
What are the benefits of replacing the exhaust from the cat converter all the way back? I guess the stock exhaust is 3"? I really don't want to affect the spare tire storage, so is that going to be an issue with replacing the entire exhaust?
If you do replace the cat and the DPF, do you still need a tuner...I understand you will need something to delete the regen...not even sure what the regen is (sorry guys)...I know it has something to burning off excess fuel for emissions (correct me if I am wrong)....what are the caveats to replacing the exhaust without deleting the regen...will it still try to regen and what will that do to the truck?
Yes they do make a single piece that deletes the Cat/Dpf.
No that piece does not include the muffler.
The full exhaust kits go from dpwnpipe back, not cat back. You could Do cat back by get a dpf delete pipe that maintains the cat, and then add a dpf back system. There's no reason to retain the cat though if you are going for mileage.
Going with a larger size is more free flowing, you can run a straight pipe or use a free flowing muffler.
Spare tire storage isn't affected and the heat shield stays there.
Yes you have to run a tuner to stop the regen. If you change your exhaust without a tuner your truck can get stuck in regen among other problems. There are sensors in the dpf and a tuner like the Minimaxx allows you to keep them in the dpf and not have to swap them into your new pipe.
There are a ton of threads on here with the ins and outs of doing a tuner and dpf delete that can probably help to guide you more toward what setup you might want.
I think I am leaning towards the cat/dfp delete pipe along with the tuner....seems like the most economical and efficient way to boost MPG...but the possibilities and combinations are endless...I feel like a color blind Dorothy trying to find the yellow brick road
Aside from the obvious horsepower gains that will be seen from replacing the entire exhaust, could the potential mpg gains (if any) be enough to justify spending the money for a complete new exhaust...
Another question that is really not related: What is the status/potential for the diesel trucks to have emissions check, and can/do police pull you over for "illegal modifications"...live in Maryland
Yep, its called a doc/dpf delete pipe that connects onto the flange off the downpipe and extends to the muffler pipe. Your oem pipe slides into the delete pipe and is attahed with a clamp. When you delete this stuff you need a tuner to fake the computer into thinking all the oem sensors and pipe are existing still, or else it will be stuck in the reign cycle. I'm. Sure nate or jeff will chime in on this for ya bud.
I agree with the CAT/DPF pipe vs. just DPF only delete, I think the install is easier and it allows you not to have to separate the stock CAT and DPF which has a $80 gasket between them. I would suggest getting a helper to lower the assemble in one piece as it weighs about 100 lbs, but I do them all the time by myself. We have the only one piece CAT/DPF pipes offered, which makes for a cleaner install and one less clamp to leak. We also offer 4 and 5" pipes for aftermarket DPF back kits if you do choose to change the look of the tailpipe. As far as performance, about the only thing beyond the CAT/DPF restriction is the downpipe. Inside the downwall downpipe is only approx. 3" ID, but it's kinda a oneway trip as the best way to get the stock one out is cutting it. Let me know if you have any questions or need a pipe. The H+S is a great choice and we offer the pipes both with or without bungs(that's the kind you'll run with the H+S).
You can always just get the delete pipes now and retain the factory tail pipe, that's what I did but it didn't take long until I was bored with it and ordered a MBRP dpf back kit lol.
What is MDRP? When you say you got "bored with it" do you mean the look of the tailpipe?
I understand they make a pipe that goes from the downpipe all the way back, right? with or without a muffler, correct? I think that I want a muffler, for various reasons
MBRP is an aftermarket exhaust company and yes I got bored with the look of the stock tailpipe and the small cooling tabs that are on the stock tips are a PITA to keep clean.
I went with the mini maxx I purchased it yesterday round 4 pm after spending about 5 hours on different forums and reading the helpful replies to my original post. I also purchased the diamond eye dpf/cat delete pipes along with the mount and adapter for the mini maxx. The pipes were relatively cheap so I am going to start with those before i get anything bigger, if all gos well I hope that will be enough. The two things I struggled with was the air in take which I will need to upgrade if I run anything above A mild tune and the exhaust tip. Both of these are on the priority list. Now for the kicker the best part of all is remember I ordered this about 4pm yesterday today when I got home from work the tuner and pipes were on my doorstep. Wow is a good description of my excitement. Performancetruckproducts.com gets A big plug from me.
Hey guys I got my H&S mini maxx installed yesterday. This was A do it yourselfer so A buddy and I tackled it. Total labor was about 3 1/2 hours including removal of the cat/dpf and install of the delete pipes. Probably could have done it in about 2 to 2 1/2 hours if we were in A hurry. The tuner is awesome the transmission relearn was A blast with several 0 to 60 starts and one 0 to 80 overall I am pleased so far. My intentions are for gas saving purposes only but I can not lie the extra horsepower is incredible and if the gas saving works out it will be worth the money.
Congrats, it is like driving a whole new vehicle. :thumb:
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