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Discussion Starter · #1 ·
Hey guys, I've been scouring this forum for quite some time now. Finally decided to join up, and I have a few questions to ask that hopefully you guys can shed some light on. I have been thinking of purchasing a colorado/canyon duramax for a while and have been teetering on the edge. I will be buying used probably with a fair amount of miles. One reason for that is I want to delete immediately, and most of the higher mileage trucks have run out of their warranties anyways so no worry there about warranty voiding. I know its become increasingly hard recently to delete diesels, and do you think its still possible? In my state there are no emissions inspections and tons of people are riding around with deleted trucks so maybe there's some hope. I'm sure I could find a shop in the area willing (crossing my fingers). Another thing, obviously there is a fair share of people who have had problems with these trucks on the forums. It seems that nearly EVERY single one has something to with the emissions equipment. So my question is, do you think an 100k mile truck thats deleted should have a long life ahead? Or has the emission equipment and mostly the stupid damn EGR already done its damage? Also, where there many improvements in the 2016 vs 2017 model year? Thanks guys!
 

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As far as voiding a warranty, if you can get a decent deal, who cares. You're deleting, so the warranty is meaningless anyway.

The reason you see a lot of issues is just like any other product. The big percentage of the reviews are posted by people that have issues. A LOT of Colorados have been sold, and I would guess a vast majority are just fine. It's a good truck and serves it's purpose very well.

Deleting... you're pretty much on your own right now. If you find someone - go for it.

2016 vs 2017, I couldn't tell you off the top of my head. 2016 was the first year, so minor bug fixes? The engine/transmission stayed the same.
 

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Discussion Starter · #3 ·
As far as voiding a warranty, if you can get a decent deal, who cares. You're deleting, so the warranty is meaningless anyway.

The reason you see a lot of issues is just like any other product. The big percentage of the reviews are posted by people that have issues. A LOT of Colorados have been sold, and I would guess a vast majority are just fine. It's a good truck and serves it's purpose very well.

Deleting... you're pretty much on your own right now. If you find someone - go for it.

2016 vs 2017, I couldn't tell you off the top of my head. 2016 was the first year, so minor bug fixes? The engine/transmission stayed the same.
Thanks for the help man! I'll keep scouring around for one hoping to find a good deal! Do you have a preference for any tunes?
 

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I haven't messed with my Colorado yet - just don't have time at work (7 day/wk) for last several months. I had my last truck ('08 2500hd) tuned and it was a beast - fun truck. Maybe this next summer or so I'll get to work on this truck. =P
 

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Discussion Starter · #5 ·
I haven't messed with my Colorado yet - just don't have time at work (7 day/wk) for last several months. I had my last truck ('08 2500hd) tuned and it was a beast - fun truck. Maybe this next summer or so I'll get to work on this truck. =P
Man, nose at the grindstone huh. Wish you the best!
 

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I wouldn’t just have any person who says they can tune your truck with EFI Live do it. Our trucks are very temperamental with this so if you get it wrong, you’ll have a very bad day. Either the message on the DIC that won’t go away that says “exhaust filter cleaning please keep driving” or a blown motor.

All of my first go to choices for tuning recommendations don’t do delete tunes any more. So, that leaves the last big name that I would recommend as being fairly reliable, that being MotorOps.

From there, once you have a tune installed, then you can delete the exhaust. Don’t do it in reverse order or you will get a bunch of engine codes and again, not have a good day. Can’t buy custom exhausts for the trucks anymore so you would have to have an exhaust shop make you one.

Also, I would almost argue that the DPF on our trucks is worse than the EGR about what is more troublesome.

GL
 

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Discussion Starter · #7 ·
I wouldn’t just have any person who says they can tune your truck with EFI Live do it. Our trucks are very temperamental with this so if you get it wrong, you’ll have a very bad day. Either the message on the DIC that won’t go away that says “exhaust filter cleaning please keep driving” or a blown motor.

All of my first go to choices for tuning recommendations don’t do delete tunes any more. So, that leaves the last big name that I would recommend as being fairly reliable, that being MotorOps.

From there, once you have a tune installed, then you can delete the exhaust. Don’t do it in reverse order or you will get a bunch of engine codes and again, not have a good day. Can’t buy custom exhausts for the trucks anymore so you would have to have an exhaust shop make you one.

Also, I would almost argue that the DPF on our trucks is worse than the EGR about what is more troublesome.

GL
Thank you for all the tips! Wish me luck lol
 

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Stopped in to my dealer to get my N2 pressure topped off and the discussion with the service manager turned to the "delete" question. He recently had his truck (a 2016 ZR2) deleted and tuned. I asked him about the regs shutting this down and he said the shop he used told him to have a paper drawn up stating the truck is for off road use only. The shop knows he intends to drive it on the road but said as long as they have the paper they aren't concerned.

Has anyone else experienced this? I'm a long way from doing this because of the warranty but certainly would like to do it down the road!

Dave
 

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Hi everyone I just did my delete 3 weeks ago it is from mo cat back no muffler.
Dont regret it its night and day difference the tranny shift like a 8speed men that thing is a little monster now .
I did had some issues when I deleted it I did it my self I wasn't in expert I had that message on my cluster screen about the def . But the guys at mo were of great help specially daniel . Daniel is the guy to speak at mo regarding muffler u gonna have to customize ur own or a shop to do it for u or just bypass al that crap on ur exhaust pipe by welding a straight pipe . I bought my exhaust before all this EPA ever happened .
 

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Case anybody is interested, I planned to delete and bought an aFe Power 49-44073-p Large Bore HD Down-pipe back exhaust that I would like to sell. I paid $496 for it, will sell at a loss. Can send pictures or more info, it's still new in the box. It's a very nice all stainless, 3" pipe with muffler.
 

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Case anybody is interested, I planned to delete and bought an aFe Power 49-44073-p Large Bore HD Down-pipe back exhaust that I would like to sell. I paid $496 for it, will sell at a loss. Can send pictures or more info, it's still new in the box. It's a very nice all stainless, 3" pipe with muffler.
I sent you a pm
 

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@DeeK I am interested if @2016sltguy doesn’t purchase it.
OK, thanks, I am checking to see how much it will cost to ship and then I'll have a better idea on the deal. I also have some pix I just took in case anybody wants to see. It is the silver exhaust tip with a black aFe raised logo plate on it. It also has a 1' extension piece which I am guessing is for use if you have the long bed. I have a short-bed 2017.
 

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Hi dmaxdan, i was wrapped up in other stuff and finally got back to the other guy. I had sent him my offer today of $520 shipped to him but he just bought one on ebay for $525 so if your shipping is the same, i make the same offer to you.
Dave
 

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I'll be looking after the holidays are over, but by then I'll be too late probably.
 

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I'll keep my eye on it.
 

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As far as EGR goes, if the oil is changed on a reasonable basis (5K miles in my mind), I don't see it doing much to the motor itself. Modern oils are designed to deal with EGR soot. The biggest issue with EGR is it mixing with the PCV oil mist and gunking up the intake with sticky goo. It is not too hard to pull the boot off the EGR inlet where the butterfly is and have a peek to see how much crud is in there.

Since you are in a state with lenient emissions laws, maybe you can find a used twin with tune or delete already completed on it, better yet, a tuned truck with a catch can in place for most of it's life. Such a truck could be gold nowadays, possibly worth more than a stock truck in your state. Such a purchase would be best via private party. Meet and "buy the owner".
 
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