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2014-2019 Engine, Driveline, & Exhaust

Technical Discussion surrounding the 5th generation of small block engines, driveline, 6/8/10 speed transmissions, and slew of factory and performance exhausts.
Includes direct injection, active fuel management, and the EcoTec3 4.3L V6 (LV3), 5.3L V8 (L83), 6.2L V8 (L86), and LB8 eAssist gas engines.

2,649 topics in this forum

  1. Legato exhaust

    By Brewiz,
    • 0 replies
    • 404 views

  3. Grade brake?

    By ammoaddict,
    • 10 replies
    • 1.4k views

  4. Can I get some input on this cat back?

    By Fatherof2,
    • 4 replies
    • 907 views

  5. Exhaust

    By Keone78,
    • 12 replies
    • 904 views

  6. Exhaust help

    By reihart,
    • 12 replies
    • 1.1k views

  7. 2014 4.3 2 wheel drive regular cab

    By 2014silveradobr,   
    • 8 replies
    • 850 views

  8. Best exhaust for 6.2 1 2 3

    By Je_suis_prest,
    • 37 replies
    • 43.2k views

  9. Headers/Cats/CAI shifting sound (whoosh?)

    By mbowen89,
    • 10 replies
    • 1.5k views

  10. Downsides to muffler shop vs kit?

    By papageoff,
    • 9 replies
    • 2.2k views

  11. 6.6L Duramax Diesel Engine Operating Characteristics

    By Retired Bob,
    • 1 reply
    • 475 views

  12. Resonators 2019 1500 Sierra

    By FRWYS & GRNS,
    • 9 replies
    • 1.9k views

  13. 14 Silverado 200k preventative maintenance

    By nathanh,
    • 7 replies
    • 11.8k views

  14. 2017 6 speed auto trans question

    By mtkawboy,
    • 6 replies
    • 1.1k views

  15. GRAWR question(s) 1 2

    By newbcakes,   
    • 17 replies
    • 3.8k views

  16. AFE twisted steel headers and y pipe 1 2

    By TruckStig,
    • 29 replies
    • 4.3k views

  17. Converter failing 2016 112,000

    By MarcuM,
    • 9 replies
    • 745 views

  18. Is this normal? 1 2

    By Mozzer,
    • 18 replies
    • 1.7k views

  19. X-fer case, diff fluid change?

    By papageoff,
    • 10 replies
    • 4.7k views

  20. Any ill effects from air filter box hose being loose? 1 2

    By Marv88,
    • 27 replies
    • 16.4k views

  21. Exhaust with no drone? 1 2 3 4 8

    By campbell45,
    • 105 replies
    • 75.6k views

  22. Catch Can install on 2018 6.2 Instructions

    By SSchup,
    • 3 replies
    • 667 views

  23. 4.3 LV3 Fuel Efficiency 1 2

    By Grumpy Bear,
    • 16 replies
    • 8.2k views

  24. 2018 GMC Denali swapping to 4.11 Gearing 1 2 3

    By DHeinze,   
    • 39 replies
    • 13k views

  25. eAssist with flow master or any after market exhaust

    By Djfrisk,   
    • 1 reply
    • 2.3k views

  26. 2014 Silverado How to Tune the Transmission?

    By wmgeorge64,
    • 12 replies
    • 28.4k views

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