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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. 

915 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 7

    By MS3DALE,
    • 92 replies
    • 55.2k views

  3. Transmission issues 2022 2.7

    By steelerdude1,
    • 0 replies
    • 89 views

  4. GM performance catback vs. Borla Touring catback vs. Corsa sport catback 1 2

    By dieselfan1,
    • 28 replies
    • 5.5k views

  5. 5.3 vs 2.7 1 2 3

    By CK,
    • 30 replies
    • 2.5k views

  6. 2023 Silverado z71 what skid plates?

    By Mshawn,
    • 7 replies
    • 341 views

  7. Lifter Failure Question 1 2

    By NorthernX31,
    • 20 replies
    • 5.2k views

  8. 3.0 Duramax Diesel oil and oil filter?

    By TheGreatOne,
    • 6 replies
    • 382 views

  9. 10spd 10L80/10L90 Transmission flush DIY

    By zhmorrow,
    • 11 replies
    • 23k views

  10. When did you change the transmission fluid in your 10L80? 1 2

    By jlong1984,
    • 18 replies
    • 2.7k views

  11. 2022 Silverado 1500 LTD with 8 speed - Does anyone know what is the opening temp for the TBV

    By Carlos Eduardo Silva,
    • 3 replies
    • 229 views

  12. 2020 Silverado 2500 HD 6.6 gas w/6 speed transmission problems

    By Stoney371,
    • 13 replies
    • 39.7k views

  13. 2023 Silverado 6.2L 0-60

    By Rhino Linings,
    • 7 replies
    • 2k views

  14. 10 speed Transmission Hot - Please help 1 2

    By ArthurW,
    • 28 replies
    • 2.5k views

  15. Tire sizes 2023 Silverado z71

    By Theodore,
    • 1 reply
    • 273 views

  16. On-line owners manual?

    By typhoon186,
    • 1 reply
    • 283 views

  17. 6.2 owners - Dual or Single Flapper 1 2

    By Rob Mugs,
    • 28 replies
    • 12.1k views

  18. 10 Speed tuning

    By Billet Bowtie,
    • 7 replies
    • 1.8k views

  19. Please help…

    By Aaron Amy,
    • 0 replies
    • 297 views

  20. 2021 GMC AT4 3.0 Duramax -making a clacking noise and missing on acceleration?

    By Blu Coburn,
    • 4 replies
    • 743 views

  21. 2022 Sierra 1500 Limited 2.7L Turbo Exhaust Options

    By Roy White,
    • 4 replies
    • 460 views

  22. 2022 6.2 engine failure.

    By Texas_Toast,
    • 12 replies
    • 1.9k views

  23. A Good Sign

    By TrueBlue,
    • 5 replies
    • 605 views

  24. Diesel Oil Concerns 1 2

    By btj_z71,   
    • 20 replies
    • 6.3k views

  25. 2024 6.2 with active exhaust is surprising!

    By oldmann,
    • 4 replies
    • 1.9k views

  26. Whistling while driving

    By Mack3748,
    • 4 replies
    • 717 views


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