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  1. Aftermarket Mods.
    So I have a LB7 from California with the EGR stuff on there and basically i was just wondering if the stealth 67G2 Turbo would fit. yes i know it says its a drop in factory appearing turbo but i havent deleted my egr yet and to do that the right way i want to get different up pipes and a...
  2. 11-16 LML Duramax Powertrain
    During a 600 mile trip from Reno to Southeastern Idaho my CEL light and service emission system message popped up while traveling near Elko. I am driving a 2015 GMC Sierra 2500HD Duramax with 170,000 mostly highway miles. The vehicle has been exclusively serviced at a GMC dealership for oil...
    egr
  3. Aftermarket Mods.
    So I bought an 08 lmm 6 or so years ago and it had the dpf removed with only the cat remaining, I'm assuming for a muffler? I've just now gotten around to doing an egr delete as I scored a good deal on a ppe cold side pipe that is a 2 piece allowing the grid heater to be retained. My question...
  4. General Discussion
    So I bought an 08 lmm 6 or so years ago and it had the dpf removed with only the cat remaining, I'm assuming for a muffler? I've just now gotten around to doing an egr delete as I scored a good deal on a ppe cold side pipe that is a 2 piece allowing the grid heater to be retained. My question...
  5. EFI Live
    I wanted to buy a flashscan for my lmm to do my own tuning for what people now call "dpf back kits" to not draw epa attention. Are the efr-dpf parameters still available on the efi live software or have they removed it?
  6. 04.5-05 LLY Performance Parts Discussion
    Hi everyone, I have a stock 05 LLY Sierra 2500HD. I was changing out the thermostats when I noticed an oily soot build up down from where the EGR intake manifold connects to the engine. Is there a gasket that should be replaced there and is it as simple as unbolting the manifold at that spot and...
  7. Aftermarket Mods.
    Hello, I have a 2008 LMM deleted and tuned. My EGR isn’t necessarily “deleted” but it is disabled. Will I lower my egts by putting in a aftermarket pipe? Or will a blocker plate do as needed because it is disabled anyway? Should I even worry about taking it out if it’s disabled even though there...
  8. 04.5-05 LLY Performance Parts Discussion
    I recently bought a ppe xcelerator economy for my mostly stock lly. The only real mods are a deleted egr with finger stick. Stock trans, head gaskets were done, with arp studs, but no real performance parts. I have torque pro, so I can watch MAF, egr, boost, etc..... anyway, I installed the...
  9. Introductions
    Hello Forum. I've been a member for a few years, but have used this forum a lot since buying my LLY in 2011..This is my first post... You guys have helped me fix some things my self or at least helped me be able to discuss intelligently with "experts." There aren't many diesel mechanics in my...
  10. General Discussion
    I have Purchased: • Intake • AirDogg • Ported Fuel Rail fitting (PPE) • Down Pipe Still Need to purchase: • EGR Delete (If you could help me out what kit to get please) • Edge CT3 Monitor • PVC reroute kit • Tune All I want is my truck to be reliable with some performance where I do not need...
  11. General Discussion
    So I’ve got efi live for my 09 lmm and I want to use it. It’s got a delete tune so I can rid my dpf. I’d like to complete delete my egr with a new up pipe and intake tube. My question is can I run with the egr unplugged until I can afford to get the egr delete stuff I mentioned prior and not...
  12. 06-07 LBZ & LLY Performance Parts Discussion
    I bought an lbz with a non functional tuner and was gonna replace it with efi live. The truck already has an egr delete and a 5 inch exhaust with a finger stick (I believe that’s what it’s called) will efi live still work on it? And if so does anyone know of a good tuner near Pittsburgh...
  13. 07.5-10 LMM Performance Parts Discussion
    New to the diesel game here. I have an 08 LMM that’s bone stock and I was told to delete it from a buddy of mine. Not sure what a delete consists of but was told that the EGR recycles emissions back into the engine and is overall unhealthy. A DPF delete was also mentioned. Can someone here point...
  14. General Discussion
    So my lly has been giving me a low coolant light and water in fuel light the last week or two. Coolant has been coming out the top of my expansion tank and my top radiator hose is a bit stiff in the morning. Along with pressure in the expansion tank in the morning as well. Typically I’d assume...
  15. 06-07 LBZ & LLY Duramax Powertrain
    I have a 2007 LBZ that I noticed a few drops of oil in the driveway in the last few weeks which is not normal, so far very few leaks. After looking underneath it looked like oil from the weep hole in the bell housing and I figured this was not going to be a simple fix. There is about 252,000...
  16. 07.5-10 LMM Duramax Powertrain
    So I’m brand new to owning a diesel and trying to figure this all out. But anyway I bought an 08 LMM with 180K. I replaced the egr valve right away ( had the low flow error and that’s what the mechanic told me to do). But I got the low flow again a month later and cleared it right away and it...
  17. 07.5-10 LMM Duramax Powertrain
    Have an 09 lmm, exhaust was already installed before i bought the truck so DPF is already deleted, but the EGR is still in place. this is my first diesel so i am not knowledgeable on the subject, but as i understand it there could be a blockoff plate installed or maybe not. Im wanting to make...
  18. General Discussion
    hey guys, just bought a 09 LMM. I personally deleted the DPF and put a 5 inch straight pipe from the down pipe back. sent it out for EFI live tune with the 5 position switch. Had the tuner shut off EGR as well. As I sit at a light and it changes and I accelerate, the truck chugs/coughs which...
  19. 07.5-10 LMM Duramax Powertrain
    hey guys, this is my 1st post on here... i have an 08' LMM w/ edge CTS programmer and 5" back exhaust w no cat muffler or dpf. Recently when running on the highway at 65-75mph, when accelerating half throttle there is a big bog down of the motor and a rumbling sound accompanied by a small shake...
  20. 04.5-05 LLY Duramax Powertrain
    just bought my 2005 LLY duramax and was wonder what suggestions/input anyone may have as far as taking off my cat converter and what to put in place of it. i'm looking at a dual 4" stack kit from XtremeDiesel.com but am not quite sure if this will bolt right up after i remove the cat. also i'm...
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