Just bought a Duramax

N-Trouble wrote:

6.6 Oilburner wrote:

Helmsey wrote:

N-Trouble wrote:
I have a 2012 Dmax (same truck) and am pretty up on modding options. No disrespect but you'll get more educated responses on the Dmax forum.

DPF back exhaust does nothing for performance or sound. It's simply a fancy $400 exhaust tip. As for their CAI some users report little to no change while others report improved throttle response and slightly better mileage. S&B intake is also very popular and is offered with a dry filter.

As for tuning, any tuning whether emissions intact or delete will void your powertrain warranty. Many who tune go the delete route as it does improve mileage as well as eleminates the horrible dead pedal feel these trucks have in stock form. The emissions components in these trucks are by far the most problematic/temperamental so deleting can in affect give you a more reliable truck. If your going to tune however the overwhelming preference is to use an EFI Live based tune and stay away from canned tuners such as Banks, Edge, Hypertech, or H&S. You can get both emissions intact or emissions delete EFI Live tunes.

Living in CA does make it tougher to go the delete route as you would have to put back to stock every 2yr if registered in a SMOG county.

EFI Live is the way to go with Duramax, no question.
Check out "Idaho Rob" and what he is doing with an LML with emissions:
Clicky

The problem with emissions present tuning is that it more times than not shortens DPF life and increases regen. Tuners not offering delete tunes will usually not make light of this.

This is true for canned tuners but not necessarily EFI Live based emissions intact tunes. Both Duramax tuner and ATP offer tunes that are as clean or cleaner than stock. Users report Regen frequency similar to stock.

If you plug/support Duramax tuner, I can't take you seriously. Top notch marketing and lack luster tuning. Not to mention the connecting rod fiasco he never made all the victims whole on.

I had this discussion about emissions present tuning with my tuner, when he released his LML autocals. Anything over a small bump is probably going to cause shorter spans between regens.