6.7 emissions issues? Pro-con for “upgrading “ exhaust

Wrangler98

Tremor Fiend
Joined
Nov 23, 2020
Messages
403
Reaction Points
770
Location
Maine
Current Ride
2021 tremor 6.7
Anyone have an upgraded Emissions yet on their new trucks? Any stock issues? Reasons why you did it? Reasons not to do it?
Myself I’m not looking for more power or any cool sounds, I just want a reliable truck. Is it worth it? Had a brand new Dmax company pickup leave me stranded twice from emissions issues, had 20,000 miles on it.
 
I have a 2017 I "upgraded" at 20K Miles, and never gave me any issues. My 2021 (Tremor) is at 1K miles, and I haven't considered it yet, but here are a list of pros and cons in my opinion.
PROS: Sounds Great, better for the truck if keeping long term, definitely more power, better throttle response,

CONS: requires tapping into the computer which voids warranty, temptation to drive harder which wears on motor, and allows motor to be pushed way harder than designed.

Overall it's an awesome upgrade, but you have to be willing to foot the bill on any issues that would normally be covered under warranty, and that as we know can be expensive. My 17 is a blast to drive I "upgraded" the exhaust and EGR. the EGR is horrible for the motor, and the DPF is a known issue to leave you stranded. So there's a gamble involved in leaving it or upgrading it, but leaving it will usually be covered. If you plan on keeping your truck for over 100K miles the EGR is what you want to do away with over the DPF. This system recirculates soot through the block eventually leaving the cylinder hone smooth and unable to hold lubricant. There is no such thing as longevity in diesel motors anymore with these devices. So you just have to weigh out the pros and cons alongside your plans with the truck and risks you're willing to pay for in case that comes up. This is honestly my opinion, and my opinion only. I'm sure you'll get many different outlooks and advice, but i hope this helped.
 
I have a 2017 I "upgraded" at 20K Miles, and never gave me any issues. My 2021 (Tremor) is at 1K miles, and I haven't considered it yet, but here are a list of pros and cons in my opinion.
PROS: Sounds Great, better for the truck if keeping long term, definitely more power, better throttle response,

CONS: requires tapping into the computer which voids warranty, temptation to drive harder which wears on motor, and allows motor to be pushed way harder than designed.

Overall it's an awesome upgrade, but you have to be willing to foot the bill on any issues that would normally be covered under warranty, and that as we know can be expensive. My 17 is a blast to drive I "upgraded" the exhaust and EGR. the EGR is horrible for the motor, and the DPF is a known issue to leave you stranded. So there's a gamble involved in leaving it or upgrading it, but leaving it will usually be covered. If you plan on keeping your truck for over 100K miles the EGR is what you want to do away with over the DPF. This system recirculates soot through the block eventually leaving the cylinder hone smooth and unable to hold lubricant. There is no such thing as longevity in diesel motors anymore with these devices. So you just have to weigh out the pros and cons alongside your plans with the truck and risks you're willing to pay for in case that comes up. This is honestly my opinion, and my opinion only. I'm sure you'll get many different outlooks and advice, but i hope this helped.
Basically how I feel about it also, I’ve heard EGRs are a lot better these days then when they first come out. But I still hate the idea of any dirty air going back through my engine. I’ve heard of a few trucks with stock emissions getting 300,000 miles, but I’ve heard of many more deleted trucks making that milestone.

That being said I’ve also heard of guys overtuning deleted trucks, there goes your transmission, rear end, and you’ve thrown a rod through your block.
 
i deleted one and i hated it. autostart the truck in the morning at 5am and when i walk out to it you can barely breathe. most the tunes are just ok and require retuning and going back and forth with the companies, trans reliability issues, not to mention most companies tunes don't do what they claim when you throw em on the dyno. i also see all the diesel particulate all over everything from the machines at work and see how it gets all over your arms by the end of the day so rolling coal everywhere is a turn off now.

my next truck i left intact. used a tiny bit more diesel while its on a region and i use 20 bucks in DEF between oil changes but in the winter sometimes this truck will idle for hours and you don't smell it. i had a nox sensor go bad i replaced. i did the emissions on tuning but its the same shit, clunky shifting, trans slipping even after the relearn so going back and forth with the companies but then the tune itself is just dumping fuel so it dirties the filter and you region more.

for the 21 i just picked up im probably going to try banks since the pedal mapping is i think what you feel the most and they keep the air the same as stock with warranty and everything intact
 
i deleted one and i hated it. autostart the truck in the morning at 5am and when i walk out to it you can barely breathe. most the tunes are just ok and require retuning and going back and forth with the companies, trans reliability issues, not to mention most companies tunes don't do what they claim when you throw em on the dyno. i also see all the diesel particulate all over everything from the machines at work and see how it gets all over your arms by the end of the day so rolling coal everywhere is a turn off now.

my next truck i left intact. used a tiny bit more diesel while its on a region and i use 20 bucks in DEF between oil changes but in the winter sometimes this truck will idle for hours and you don't smell it. i had a nox sensor go bad i replaced. i did the emissions on tuning but its the same shit, clunky shifting, trans slipping even after the relearn so going back and forth with the companies but then the tune itself is just dumping fuel so it dirties the filter and you region more.

for the 21 i just picked up im probably going to try banks since the pedal mapping is i think what you feel the most and they keep the air the same as stock with warranty and everything intact
I was told the new 6.7s with the 10 spd are fast as hell stock anyways
 
i deleted one and i hated it. autostart the truck in the morning at 5am and when i walk out to it you can barely breathe. most the tunes are just ok and require retuning and going back and forth with the companies, trans reliability issues, not to mention most companies tunes don't do what they claim when you throw em on the dyno. i also see all the diesel particulate all over everything from the machines at work and see how it gets all over your arms by the end of the day so rolling coal everywhere is a turn off now.

my next truck i left intact. used a tiny bit more diesel while its on a region and i use 20 bucks in DEF between oil changes but in the winter sometimes this truck will idle for hours and you don't smell it. i had a nox sensor go bad i replaced. i did the emissions on tuning but its the same shit, clunky shifting, trans slipping even after the relearn so going back and forth with the companies but then the tune itself is just dumping fuel so it dirties the filter and you region more.

for the 21 i just picked up im probably going to try banks since the pedal mapping is i think what you feel the most and they keep the air the same as stock with warranty and everything intact
The tunes are advertised by crank numbers so if you're looking for those numbers on the dyno then that ain't happening. Just like if you put a truck Ford is advertising at 475HP on a Dyno, you're going to be very disappointed if you expect to see 475. With the GDP support pack on the EZ lynk there were no problems in my experience, and they're continuously improving. They also have outstanding customer service. Their tunes are great. they also have low smoke tunes. People don't always "upgrade" for power. losing the egr is great for longevity of the vehicle. The transmission risks are there if you abuse the truck. Same goes for the "rolling coal" I can drive my "upgraded" 2017 and not puff a bit of smoke. the whole "rolling coal" is a childish act IMHO. I enjoy the added throttle response and MPG improvements more than anything on mine.
 
Wouldn’t the biggest con be loss of warranty? Also I have been told unless you have an understanding with the shop/dealer some might not even look at your truck should you have an issue with the vehicle, engine related or not.
 
Wouldn’t the biggest con be loss of warranty? Also I have been told unless you have an understanding with the shop/dealer some might not even look at your truck should you have an issue with the vehicle, engine related or not.
Yes, that is definitely the biggest Con. It does depend on the dealer. If your power mirror stopped working they'd be an A$$ hole to blame a tuner LOL, but i guess they could deny any warranty work if the warranty is voided.
 
I was told the new 6.7s with the 10 spd are fast as hell stock anyways
I’ve got 7k miles no problems with the emissions stuff been great and like you’ve heard these trucks are fast love the power it pulls all the way to 96 mph ??
 
I’ve got 7k miles no problems with the emissions stuff been great and like you’ve heard these trucks are fast love the power it pulls all the way to 96 mph ??
Yes these trucks are very impressive stock. I have no complaints on my 21.
 
Yes, that is definitely the biggest Con. It does depend on the dealer. If your power mirror stopped working they'd be an A$$ hole to blame a tuner LOL, but i guess they could deny any warranty work if the warranty is voided.
For sure, I know a couple guys that have done it but had good relationship with a dealer to claimed repair work as “ac work”. On the heavy equipment side I was told by my dealer that “in the field work” is easy to get around but if the equipment has to come into the shop they legally can not let it pass through and that it must equipped as stock to come in and go out.
 
I thought most emissions problems came from a lot of short drives. Did the work truck duramax have lots of short drives?
 
I thought most emissions problems came from a lot of short drives. Did the work truck duramax have lots of short drives?
Lots of short drives will kill any diesel engine. Stop and go, low mph, etc.
 
Long idles as well can add to it. Other time it could just be a sensor itself. The whole system could be fine but a sensor fails and could leave ya stranded, and there are a lot of them little things on vehicles now.
 
I'm waiting on the "tunes" to be released. Then I can do the weight reduction mod.
 
The tunes are advertised by crank numbers so if you're looking for those numbers on the dyno then that ain't happening. Just like if you put a truck Ford is advertising at 475HP on a Dyno, you're going to be very disappointed if you expect to see 475. With the GDP support pack on the EZ lynk there were no problems in my experience, and they're continuously improving. They also have outstanding customer service. Their tunes are great. they also have low smoke tunes. People don't always "upgrade" for power. losing the egr is great for longevity of the vehicle. The transmission risks are there if you abuse the truck. Same goes for the "rolling coal" I can drive my "upgraded" 2017 and not puff a bit of smoke. the whole "rolling coal" is a childish act IMHO. I enjoy the added throttle response and MPG improvements more than anything on mine.
i get the difference of crank vs wheel hp and im not saying i expect the full claim though i don't get why claim crank hp improvement when they are creating the tune by using wheel hp so its just bs bumped up numbers to sound better from the beginning but whatever.

i was more referring to the tunes not making near the power they advertise on a lot of them and im saying a 250hp advertised tune doing 40 better at the wheels and the whole tune being mostly done with pedal reaction. one tuner was shift on the fly and power was roughly 50 more on the "extreme" setting with improved pedal response and the "stock" setting was much lower then actual stock power. i guess the trick is finding an actually good tune and not just going with a tune recommended by guys who think its better because it "feels" better
 
i get the difference of crank vs wheel hp and im not saying i expect the full claim though i don't get why claim crank hp improvement when they are creating the tune by using wheel hp so its just bs bumped up numbers to sound better from the beginning but whatever.

i was more referring to the tunes not making near the power they advertise on a lot of them and im saying a 250hp advertised tune doing 40 better at the wheels and the whole tune being mostly done with pedal reaction. one tuner was shift on the fly and power was roughly 50 more on the "extreme" setting with improved pedal response and the "stock" setting was much lower then actual stock power. i guess the trick is finding an actually good tune and not just going with a tune recommended by guys who think its better because it "feels" better
If you go buy the numbers the TFL guys saw at five star when they dyno’d the stock 6.7, it nearly made the stated HP to the wheels. When factoring in losses they saw crank HP over 500 and TQ over 1100.
 
If you go buy the numbers the TFL guys saw at five star when they dyno’d the stock 6.7, it nearly made the stated HP to the wheels. When factoring in losses they saw crank HP over 500 and TQ over 1100.
The Thoroughbred Diesel Chanel did the same thing on their Dyno.

They actual said in one of the videos they’re not sure why Ford de-rated their numbers because the two tested were both over 500 and over 1100.

Dodge Cummins video showed two tested and neither got at or above factory spec.

Here’s a screen shot of a 2020 platinum F350 Dyno pull, left side is wheels right side is crank 923815E9-D1F3-4C77-BBDE-F6BC60E66C56.png
 
The Thoroughbred Diesel Chanel did the same thing on their Dyno.

They actual said in one of the videos they’re not sure why Ford de-rated their numbers because the two tested were both over 500 and over 1100.

Dodge Cummins video showed two tested and neither got at or above factory spec.

Here’s a screen shot of a 2020 platinum F350 Dyno pull, left side is wheels right side is crank View attachment 12782
I thought it was interesting the 7.3 just barely made the crank numbers.

Guessing numbers go up next year at least on the diesel.
 
I thought it was interesting the 7.3 just barely made the crank numbers.

Guessing numbers go up next year at least on the diesel.
I didn’t watch the 7.3 video, with Dodge reporting 1075 on the Cummins , maybe Ford will advertise actual PowerStroke numbers.
 
Back
Top