I'm looking a getting a steal on a loaded 2015 LTZ Silverado Z71 diesel. The truck runs great and is super clean but my concern having the emissions deleted. What are yalls thoughts on this? Everything I've read says it will prolong the life of the engine and the warranty is already voided on this truck because of the upgrades so that's not a concern at this point.

Any advice?

No, at some time there may be emmission testing statewide. You never know what politicians may do. Also don't have a clue how it was driven.

Sure, if you also get the DPF that was removed. You can always go back to stock config.

Just inquired and all stock emission parts are still available. He bought the truck used about 4-5 months ago and he did all the emissions deletes, new wheels/tires, shocks, 6" lift within the last few months. He is a car whore and gets something new every 4-6 months. Currently has 40k miles.

Only if it came with all the emissions hardware and the software could be put back to stock easily with no out of pocket cost.

I personally would be leery of someone who buys a truck like that puts all the mods into it and then gets rid of it. It probably had the ever loving shat driven out of it for the 40k that's on it, you have no warranty, and technically it is illegal for him to sell you the vehicle with the emissions off. If you are going to finance I dang sure wouldn't tell your lender.

Don't walk away from it, run!

Against federal law to sell a truck with know emission removal. Go try to trade it in someday and have fun.

You said lift kit, I'm out on that one. The tunes & deleted part would run me off too. I absolutely hate the thought of major repair bills on a vehicle I owe tons of money on

Anything with def in it just RUN from IT ! I drive one for a living and the engine light never stays off more than 2 weeks and constant exhaust cleaner problems. No, never, ever if I am paying for it

Heck if it's a steal and you don't want it, PM me. I'll be all over it.

Why would you not buy a deleted truck? You already said he has all the stock stuff to put it back on if need be . I would much rather have a deleted truck that hasn't been choked down with all the emissions bs . Have you ever seen the inside of these choked down trucks motors? It looks like a smokers lungs . My truck is deleted for mpg purposes only , it's not a hot rod . I will never drive a choked down diesel again

For everybody that gripes about the DEF and how bad the emissions is on the engine how long do you actually keep a truck? I'll run mine until warranty is nearly out then adios and hello new truck. I couldn't give 2 chits what the inside of the engine looks like

I run my trucks for 10 years plus , a truck note is for suckers

What are you calling a steal (if you don't mind posting the price)
If you live in a emissions testing county it can be tough (some would same impossible) to get it inspected without the DEF.
It is good he has the stock parts, but if you ever tried to take it in for warranty work they would immediately know it's been modified no matter how you try to return to stock.
Did he also block the EGR (or take it out completely)? And if so does he have the EGR unit.
I would ask him specifically what tunes he used. A D-max can easily be powered up enough through tunes and deletes that you will go through a tranny and rear-end and have to upgrade.

I have a 6.7 Powerstroke that is fully deleted. All newer model diesels run a heck of a lot better without all the emmissions, but if you are a trade in every 2-3 years guy it is not worth it.

40k miles in 6 months, a lift, a a tune? Pass

If it's a steal, it might be worth a shot if it's exactly what you want, you don't live in an emissions county, and it comes with all the parts to return it to stock. But it would have to be a real giveaway for me to ignore the obvious implications of a guy who buys an expensive truck, makes some really expensive mods, drives the crud out of it, and is then willing to sell it at a huge loss.