Well here's my two cents. OP, you don't say why your deleting?? I find that odd. $100k plus truck, 21 yrs old, or just fishing? You can spend that kind of money you should be wiser by reading what you can or can't do. It's not complicated. It's already out there! Anyways, delete if you want. I'm into it. I'm an old muscle car guy. I don't like anything stock...or quicker than me. Deleting, nowadays is complicated as the guys have already pointed out here. I've deleted all my trucks in the past and don't regret it. They're reliable and it was just easier and cheaper back in the days. Mines a '12, old now. I follow aftermarket stuff all the time. Deletes are becoming rarer if almost obsolete. I don't need to go into details it's already been stated here. What I would worry about in the US, is support. Your not getting much of that anymore and its very illegal now too, just to make it more interesting. I'm in Canada, you can still do it up here with some support, but man, you got to be into it. You need to know your stuff. You drop a lot of money on the truck itself then you want to customize it. You better have deep pockets and some connections because you're gona need it. What bothers me is that you don't divulge why? You thirsty for more power? Reliability? You should do your homework. These trucks are putting out some pretty decent power now and they are more reliable than in the past. Guys aren't going to offer delicate info to a 4 poster, number name guy. You need to be wiser and you might get what your looking for, but not here. Good luck anyways.

 

I have a 2016 and she's still stock. Almost 134k miles. Have two Banks iDash units to monitor regens, which to be honest, are a pain in the b *** s to be sure. I have a new oil catch can yet to instill to keep more oil vapors out of intake than my Mishi can is. I'm watching for Fass to come out with a EGR filter for my gen truck. My truck is a keeper and has had no major issues. I drive the hills, complete almost all regens and am not afraid to buy an aftermarket product to help with the longevity of my stock truck. Though I am NOT opposed to deletes. But like already stated, it's harder to do now then the old days. These new MY 23s have an encrypted ECM that have to pulled and sent to Canada last I knew.

IMO, if I bought a new truck with the 9th injector, I would not delete but that's me. These newer 6.7s use more DEF and less EGR from the way I understand it. Looking at @acdii posts about how his last 5 to 6 miles and the SL% do not go above 37%, I don't see why deleting would be necessary. Fuel is no longer being introduced to the oil with the injector in the DPF itself and less EGR is being introduced inside. With the amount of power these new 6.7s have, why is more needed? But as a guy who wants a diesel truck and not needs one, I get why folks would. So again, if it was my truck, no... but not my truck nor my money.

Good luck.

 

For me the convenience of not dealing with DEF is worth the delete. One less thing to worry about and the potential of putting DEF in the diesel tank is still a risk. The newer 6.7L sound like it would be extremely difficult to delete.

 

DEF doesn't bother me... I always fill from the 2.5 gallon jugs at home. But it does **** me off if I get it on a good pair of sneakers though...

I've been behind deleted trucks, plus recently near a 10 wheel dump truck with the exit under the truck, an older KW, and it stunk to the high heavens. That's the one thing that I notice about trucks with no emissions... super strong smell. I remember a friend of mine , who works in the town I work, had a 6.0 and I pulled behind him with the patrol car and we talked behind his truck... real bad stink. That's the nice thing with a stock truck but like I'ce said before, not against a responsible owner deleting their own truck.

It sure is not as easy as it once was to delete.

 

If epa adjusts the requirements

Maybe no more Def, would be a good start for epa rule makers...
its horrible, ruined shoes, paint, etc

I say this as my egr was rodent damaged and truck burned through 13% Def in less than 100 miles
once i got her back and egr was functioning and truck sensed all was good
now I have used 1% Def across 200 miles
And dpf is self cleaning without commanded fuel squirt er to reduce some of the bad gasses ...so far.
it gets to 50% in town and by time I get home 22 miles at 65..it's down to between 30 and 25%
my bus has 8.3 isc. With dpf only, no Def when it was built

It has a clean tail pipe and does not smell rancid, sort of smells like a jet engine

 

I agree. I've monitored and logged my regens with my iDash. I've seen the same as @acdii with fast regens with the 23+. When the iDash switches to Active for regen monitoring, it takes approx 4-5 miles until the EGT4 PID hits 1100F and the DPF% begins to drop on the dash. Another 5 miles or so for it to hit 0%, then 3 miles until iDash shows that regen is complete. I daily drive my truck and have many 2-3 mile trips during the week along with a 15'ish mile drive to work. I also let my truck idle for 5 minutes before heading out when it's <20f. I've only seen the DPF% on the dash go above 65% once and never had a regen occur other than at the 497 mile increment that Ford uses to force it to happen. I've also only added 2 jugs of DEF in about 4500 miles since I've had it, and buying at Costco at $13/jug isn't a cost that worries me.

 

Many a time Mine will go into regen but NOT trigger the regen active PID. There are times when starting the truck it will flicker between ACT and off for about a minute and stay off, and then there are times it shows a ON with a full regen. The only times I know it is doing an actual regen is when I smell it, and then notice EGT 3&4 in the 1150* range. Considering it regens at consistent mile intervals and is rarely in the 30% soot level on the iDash, I suspect that the DPF will have an enormously long life compared to previous MY trucks thanks to the 9th Injector. I also am not seeing a drastic use in fuel during a regen either.

It does use 4-5* the amount of DEF compared to the 2019 though. I usually filled it once during the winter, but am filling it about every 6th tank now.

 

Watching what happens with the EPA moving forward with deleting will be interesting to be sure...

 

Wow that's great... those new 23 plus short regens...

 

Sure would be nice if there was some sort of retrofit kit available to do that 9th injector. Although I know that would not be easy, especially with the programming required to bypass the rules already in ECM, but one can dream, right?

 

That would be good to have. I think though the 23+ DPF/SCR was redesigned in order to add the injector to it. A retro kit that replaced he DPF/SCR with plumbing and a reprogram would be a lot easier to sell in the states than a delete, and would give added business to Diesel shops they lost over the EPA.

The biggest concerns people have with diesels and delete them is the EGR and DPF. If it takes away from failures of the engine, yet keeps the air clean, it would be a much better choice than deleting. Could cost about the same too.

 

Your're telling me, Joe....

 

GM is already in contact on how to proceed with fixing recalls with Active Fuel management that led to sudden engine death. Changes have already begun. If you violate the Clean Air Act as an owner, you can quit looking over your shoulder, nobody is coming after you with a Fine Tooth comb since the EPA adopted their own rules. California is already facing a smack down implementing laws over Federal regulations.

See how this shakes down.

 

Regardless of what happened with the EPA and their being smacked down, it doesn't prevent any state from enacting their own emissions testing. If a county where there are a bunch of deleted trucks decides to start doing emissions testing, what are the deleted owners going to do? Drive around with expired plates? Wont be able to renew without a valid smog test. Not to say it's going to happen, but what if it does?

What if one decides to take a trip to CA and is forced to do an emissions check when across the border. Then what? They still enforce emissions checks regardless what the feds did with the EPA. Its Commiefornia for a reason.

 

Let's just say the future is uncertain and will be interesting for sure... cannot wait.