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2019-2023 Engine, Driveline, & Exhaust

Technical Discussion surrounding the 6th generation of small block engines, driveline, 6/8/10 speed transmissions, and slew of factory and performance exhausts.
Includes direct injection, active fuel management / dynamic fuel management and L3B 2.7L Turbo, L82/L84 5.3L & L87 6.2L and new derivatives of these engines for 2023. 

839 topics in this forum

  1. Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) will not be available on certain 2021 model year Silverado 1500/Sierra 1500 pickups 1 2 3 4 6

    By MS3DALE,
    • 87 replies
    • 46.4k views

  3. How does your 2.7 sound?

    By teeje9876,
    • 1 reply
    • 114 views

  4. 21 Elevation 5.3 slight tick at idle

    By Nicolas Passafiume,
    • 1 reply
    • 81 views

  5. 22 5.3 Muffler Delete (surprisingly enjoyable) 1 2

    By jaxcam02,
    • 17 replies
    • 2.8k views

  6. Borla touring muffler part number

    By Sperro,
    • 4 replies
    • 1.2k views

  7. Corsa Sport or Borla S-type

    By jwilso98,
    • 9 replies
    • 4.3k views

  8. Transmission Cooler for 2021 Silverado z71 1 2

    By malibu43,
    • 18 replies
    • 2k views

  9. Afe muffler replacement 5.3 10 speed trail boss lt 1 2 3

    By Firehawk99,
    • 33 replies
    • 12.9k views

  10. 2020 Sierra 3.0 Duramax bad turbo???

    By TheBigBadWolf,
    • 0 replies
    • 269 views

  11. PPE Exhaust installed on 3.0 LM2 Duramax Diesel Silverado !

    By DemonWorks,   
    • 9 replies
    • 3.2k views

  12. LM2 Duramax tuning is here! (EPA compliant)

    By Ronjon,   
    • 1 reply
    • 597 views

  13. Humming/Whining Sound on 6.2L 1 2

    By Anthony Bessel,
    • 15 replies
    • 1.9k views

  14. 3.0 Duramax Shudder?

    By thegrizz,
    • 9 replies
    • 3.3k views

  15. Park Park comes on while driving

    By GregGreg123,
    • 2 replies
    • 314 views

  16. Duramax LM2 3.0l Independent Exhaust Brake Actuation

    By jdrockin,
    • 5 replies
    • 1.8k views

  17. Magnaflow 19534 - anyone try this set-up yet? 1 2

    By RCF71,
    • 18 replies
    • 4.8k views

  18. Flowmaster American Thunder

    By Grey6.2,
    • 1 reply
    • 545 views

  19. Exhaust tip placement

    By bikersully,
    • 1 reply
    • 708 views

  20. 6.2l OEM cat back performance exhaust.

    By Jus Cruisin,
    • 5 replies
    • 1.3k views

  21. 3.0 Duramax exhaust smell in cab 1 2 3 4 5

    By IcemanNY,
    • 63 replies
    • 28.9k views

  22. L84 can I save it ?

    By Fredo1888,   
    • 8 replies
    • 797 views

  23. Rear Diff Cover Bolts Torque Spec

    By fondupot,
    • 4 replies
    • 506 views

  24. Oil consumption 2019 Silverado 2.7 1 2 3 4

    By Dave-Minnesota,
    • 56 replies
    • 6.5k views

  25. Rattle and Jerk

    By 20LTZ,
    • 2 replies
    • 624 views

  26. Borla Catback system ordered from factory

    By Stanley Morton,
    • 3 replies
    • 591 views


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