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Engines & Drivetrain

Tech for the 5.3L (L83), 6.2L (L86), and 4.3L V6. Tuning and 6L80 / 8L90 transmission support.

2,740 topics in this forum

  1. 5.3 with 3.08 vs 3.42 1 2

    By ChevyBrad1500,
    • 29 replies
    • 38.6k views

  2. Borla S Type vs Corsa Sport 1 2

    By Aldila,
    • 15 replies
    • 20.1k views

  3. Weird engine noise

    By bndawgs,
    • 2 replies
    • 801 views

  4. Ordered a whipple! Anyone that's got any tips or insight plea 1 2 3 4 13

    By Denali62,
    • 194 replies
    • 40.7k views

  5. Anyone with a magnacharger on a 2014+

    By sprayed99,
    • 6 replies
    • 1.2k views

  6. 2019 corvette zr1

    By truckguy82,
    • 0 replies
    • 679 views

  7. Took my GM performance(Corsa) muffler off

    By Meethead,
    • 11 replies
    • 3.4k views

  8. 2015 Intake box issue

    By afireinside7444,
    • 1 reply
    • 716 views

  9. Transmission starting to Slip?

    By EPIC CAJUN,
    • 5 replies
    • 1.8k views

  10. Changing the fluids in my 2014 Silverado and have a few questions 1 2

    By GMcD,
    • 15 replies
    • 4.2k views

  11. Misfires registering on Torque

    By 2014gmcAT,   
    • 6 replies
    • 2.6k views

  12. 5.3 Compression and fuel

    By Bowhunt24,   
    • 9 replies
    • 40.1k views

  13. Oil consumption 2015 Silverado

    By Itsval7,
    • 5 replies
    • 1.5k views

  14. 2017 Sierra 6.2 with leaking cylinder head

    By pewterliftedz,
    • 3 replies
    • 1.3k views

  15. Exhaust setups on 4.3s?

    By Listen2hector,
    • 2 replies
    • 747 views

  16. Exhaust Noise 1 2

    By tyler.frost92,
    • 23 replies
    • 3.6k views

  17. Exhaust with dual 3” tailpipes??

    By coilovergto,
    • 2 replies
    • 742 views

  18. Engine code P0324 help

    By USCGRetiredJosh,
    • 5 replies
    • 31.9k views

  19. Forced induction

    By SkittlesR6sl_ut,
    • 3 replies
    • 878 views

  20. Long tubes headers 1 2

    By Silver ice 6.2,
    • 23 replies
    • 5.5k views

  21. 5.3 Borla ATAK cat-back install 1 2

    By OmniCamaro,
    • 27 replies
    • 11.2k views

  22. Turning v4 mode back on

    By chevy2tuff2006,
    • 2 replies
    • 861 views

  23. intake and exhaust

    By elKrusto,
    • 4 replies
    • 1.3k views

  24. 6.2L exhaust - Magnaflow, Flowmaster, other? 1 2 3 4

    By therapy,
    • 52 replies
    • 52.2k views

  25. Found a budget 3.5" Stainless cat back for my 17' 6.2 1 2

    By pewterliftedz,
    • 28 replies
    • 12k views
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