.I've run GDE's pre compliant tune, SFT tunes and currently MRT (via EOC) tunes.
If you want to be compliant GDE is the only one. Unfortunately, they cannot sell to Califunny registered trucks, which I am.
If you want to shut off the EGR or delete (stage 2), SFT and MRT are available.
I've already posted on this and other forums about SFT's dishonesty.
I'm finding the MRT tunes to be excellent. I am concerned with their regen cycles.
SFT regened an average of every 190 miles, MRT tunes are regening an average 0f every 137 miles. Part of the difference is SFT included some hiway miles, so far the MRT miles are all local miles. MRT is regening at about the same intervals as the stock tune.
John, thank you for the response. The way I read your post is that stage 1 is just an EGR disable or delete and stage 2 is an EGR disable or delete and an emissions delete in the form a DPF delete? This is why MRTuning requires a turbo back exhaust in their stage 2 tune?
Also, I may not understand the regen process completely but I understood it as a burn off of “soot” in the DPF. If you delete your DPF will your truck still have to regen?
Thanks for clearing all this up for me.