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  1. 11-16 LML Duramax Powertrain
    Hi, What is the max amount of horse power from a tune the 2016 duramax can handle with stock Allison, turbo, etc without any issues starting?
  2. 07.5-10 LMM Performance Parts Discussion
    I just bought brand new S & S 60% over injectors. The shop advised me I shouldn’t drive it without tuning it first. I do plan on having it tuned eventually but I guess my question is do I need to? Is it going to tear something up if I don’t have it tuned and I drive it?
  3. Performance Upgrades
    alright I’m looking into the edge cts3 insight or the evolution. The evolution has 5 preloaded tunes, does anyone here run an evolution and have any feedback. Or should I just do the insight and later on get the dsp5 switch with efi live? One shop I go to likes the edge evo and another one says...
  4. Performance Upgrades
    Deleted
  5. EFI Live
    I’m new to the forum and I have a 2007.5 lmm duramax. I have a efi live tune on it with a dps5 switch. Im currently battling the gas mileage. I’m averaging around 14.7 with city and highway. Before I got it turned I wasn’t sure what tune it had but it averaged 16.7. I’m considering of switching...
  6. General Discussions
    I’ve seen a ton of posts on white smoke, but none that fit what my truck is doing. It’s an 05 LLY, EFI live with DSP5 switch, stage 5 tranny, PCV reroute and 10 over injectors. When I have my tune up all the way (position 5) and I get on it it will sometimes blow black smoke, sometimes it’ll be...
  7. 2001 - 2007 (GMT800) Non Powertrain
    I was trying to reflash my truck with my PPE hot +2 and I forgot to pull the fuses. I got error - C9009800E5CF04D27F84898E when trying to change tunes. Now it asks if I want to return it to stock and you have to hit yes and then it gives me Key Error 0000 and Seed Error. Truck will not start...
  8. 04.5-05 LLY Performance Parts Discussion
    Ok Ok i know everybody hates on bullydog and probably for a good reason i haven't had a problem with it yet but i see that you can load custom tunes on one, im looking for a smoke tune and a lope tune, looking to spend a couple hundred max for both if possible, thanks.
  9. 04.5-05 LLY Performance Parts Discussion
    It seems like there’s not a lot of fans of the bullydog on here but does anyone have an idea of we’re I can get custom tunes made for one? I’m looking for a lope tune and a tune that will dump coal. Thanks!
  10. 04.5-05 LLY Performance Parts Discussion
    Alright I’m trying to tune my lly duramax and there are dsp5 switched on duramax tuner for like 40 bucks do these come with tunes or do I need to load tunes on these. Also I’m gonna have a cts3 display will that cause problems. Thanks!
  11. 2016+ XLD28 Duramax Powertrain
    Hey guys, I am playing pure hell trying to delete my 2.8. I went through Same Day Tuning with an EFILive delete/tune. 5 months of back and forth and NOTHING. Can anyone help me with a tune/delete that works? HP Tuners MPVI2 has a tuner that they claim works, but I can't get hold of a human...
  12. EFI Live
    I know efi live is the best but which efi live tuner is the best looking for overall upgrade and little bit of smoke i have a 165 lift pump and all stock except air intake and exhaust
  13. Vehicle electronics/ Programmers For Sale
    I have a Black Bear Performance AutoCal efi live for sale. I bought it back in like 2017 and never put it on my truck because I was out of state. I have sold that truck and it has just been sitting here collecting dust. It was for a 2015 Silverado 5.3L but they told me they could be used on...
  14. EFI Live
    I have a 2012 LML I just purchased a truck used it has a five position under the dash with yellow and black wires running right to the ECU not too sure what tunes are on it or whoever made the tune is there a way I can figure this out
  15. General Discussions
    I’m buying the HSP full max air flow kit, the person I bought it from had a sinister blocker plate delete and idk what tune is on it. It also had mbrp 4” exhaust. Needing help finding tunes and programmer to switch on the fly pls help!
  16. EFI Live
    Hey guys, I’m trying to find out who does good tuning for efi live in the Orlando FL area? Or just who still does good tuning for EFI in general. There’s a lot of companies and I’ve seen a lot of mixed reviews. I’d also rather have it dyno tuned if that’s possible with EFI so there’s no...
  17. 06-07 LBZ & LLY Performance Parts Discussion
    I recently bought a 06 (lly) or llz as some people call them and I have no idea what this tuner is or what it does. ill attach a photo, the selector nob with 1-5 is the only thing I see in the truck. thanks for the help!!
  18. Aftermarket Mods.
    First off curious to know what the max power the stock transmission can take with a transmission tune? Also is it more reasonable to rebuild or buy a new unit ? What’s the best bang for the buck? and I’m looking to be around 700 rwhp . Thanks!
  19. Transmission Shop
    :confused:Gents- Recently "replaced" the DPF with a nice little piece from diamond eye. Used a thumb stick(?) "DPF-R 4.0" did the reprogram to eliminate regen.... Now, I have a horrible almost scary hestitation almost slipping feeling at 1/4 throttle, through all gears. if I roll into WOT I...
  20. EFI Live
    I am struggling to breath with the price of Diesel right now. As you can see from my signature, I have an '06 LLY w/6 speed. Here are the few mods that I do have: S&B Intake CAI Straight Pipe I am avg 13 MPG in town and can get up around 15.5 on the HWY. I have a front-end replacement (so...
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