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  1. gmduramax

    S and B or HSP

    I’ve only ran oiled filters 🤷🏻‍♂️ Never had any issues so I see no reason to change
  2. gmduramax

    S and B or HSP

    S&B
  3. gmduramax

    Bought a Sierra as Donortruck - now he stay

    If you’re wanting less lag, I would do exhaust manifolds from a LML and RDL up pipes then port the turbine housing on the factory turbo.
  4. gmduramax

    February '23 Chat -- "Love the truck you're with"

    I think I’ll stick to vehicles, I can let them sit if I lose interest 🤣🤣
  5. gmduramax

    February '23 Chat -- "Love the truck you're with"

    I can agree to this. But lately I have been slowing down and enjoying the little things in life. I would always grind to get to a certain goal and not focus on anything else. I noticed it seemed like my days got longer 🤷🏻‍♂️
  6. gmduramax

    P088 High Fuel Pressure Code

    This probably won’t help. But I had a friend with an LBZ and his truck was doing exactly the same. His batteries were going bad and he replaced them per my request. Truck still had issues, reflashed the tune with EFI live and the problem went away and never came back. This was 8 years ago.
  7. gmduramax

    Towing injector size

    Really depends on your power goals. S&S injectors or exergy are good. You will need custom tuning for larger injectors
  8. gmduramax

    Sick week 2023

    Maybe next year 😫
  9. gmduramax

    Maintenance and Lift Pump

    I would be curious why you’re going to 27.4. Yes the relief valve is doing what is intended to do and if your tuning is calling for more than 180mpa why? Also if your tuning has the regulator going max pressure at full throttle you will cause problems by installing a plug because your rail...
  10. gmduramax

    Renewable diesel?

    Because in Ca it was almost $7 a gallon 🤣
  11. gmduramax

    P0089 Code

    Desired and actual fuel pressure. Main injection rate
  12. gmduramax

    Converting LBZ tunes to use in LMM

    You should adjust the tables for altitude but if you just keep them all the same you won’t have a problem
  13. gmduramax

    Converting LBZ tunes to use in LMM

    Just copy and paste the tables. If you made a LBZ tune you can make an LMM tune. They’re basically the same. Just watch to make sure the axis are the same.
  14. gmduramax

    Are aftermarket leveling kits REALLY worth it?

    Just buy upper control arms, shocks. No need to get keys or any other bs people try to sell you. Only raise it an inch and enjoy your ride.
  15. gmduramax

    2020+ lowering kits??

    Can we just cut to the chase body drop and bag it, we all know you don’t do anything half assed 🤣
  16. gmduramax

    Transfer case MT24247209 60MT N902510874

    Wasn’t it the diff is still electric but the T case was manual?
  17. gmduramax

    Tie Rod Adjustments

    I would just go get an alignment, it doesn’t need to settle. The truck could still drive straight and the toe be off a lot and the truck favors one side.
  18. gmduramax

    "engine power reduced" with no engine light or code, possible tuning issue?

    How big of a tune are you running? Do you have a lift pump?
  19. gmduramax

    January '23 Chat -- "New Year, New Gear!"

    My dads trans in his L5P is not happy 🤣. I’m too lazy to finish installing the twin turbos on the LMM.
  20. gmduramax

    January '23 Chat -- "New Year, New Gear!"

    Starting the new year off right Sent from my iPhone using Tapatalk
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